examples7

id: 4036

question: Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

choice: (A) sample A (B) neither; the samples have the same temperature (C) sample B

context: The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

gold answer: B

wrong prediction:

Rationale:

0: The temperature of a substance depends on the average kinetic energy of the particles in the substance.
1: The higher the average kinetic energy of the particles, the higher the temperature of the substance.
2: The kinetic energy of a particle is determined by its mass and speed.
3: For a pure substance, the greater the mass of each particle in the substance and the higher the average speed of the particles, the higher their average kinetic energy.
4: Each particle in the two samples has the same mass, but the particles in sample A have a higher average speed than the particles in sample B.
5: So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
6: Because the particles in sample A have the higher average kinetic energy, sample A must have the higher temperature.
7: The answer is A.

id: 4043

question: Would you find the word object on a dictionary page with the following guide words? off - onion

choice: (A) yes (B) no

gold answer: B

wrong prediction:

Rationale:

0: Guide words appear on each page of a dictionary.
1: They tell you the first word and last word on the page.
2: The other words on the page come between the guide words in alphabetical order.
3: To put words in alphabetical order, put them in order by their first letters.
4: If the first letters are the same, look at the second letters.
5: If the second letters are the same, look at the third letters, and so on.
6: If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order.
7: For example, be comes before bed.
8: Put the words in alphabetical order.
9: Since object is between the guide words off - onion, it would be found on that page.
10: The answer is A.

id: 4127

question: Would you find the word speck on a dictionary page with the following guide words? sombrero - sway

choice: (A) no (B) yes

gold answer: B

wrong prediction:

Rationale:

0: Guide words appear on each page of a dictionary.
1: They tell you the first word and last word on the page.
2: The other words on the page come between the guide words in alphabetical order.
3: To put words in alphabetical order, put them in order by their first letters.
4: If the first letters are the same, look at the second letters.
5: If the second letters are the same, look at the third letters, and so on.
6: If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order.
7: For example, be comes before bed.
8: Put the words in alphabetical order.
9: Since speck is not between the guide words sombrero - sway, it would not be found on that page.
10: The answer is A.

id: 4141

question: Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

choice: (A) The magnitude of the magnetic force is the same in both pairs. (B) The magnitude of the magnetic force is smaller in Pair 1. (C) The magnitude of the magnetic force is smaller in Pair 2.

context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes.

gold answer: B

wrong prediction:

Rationale:

0: Magnets can pull or push on each other without touching.
1: When magnets attract, they pull together.
2: When magnets repel, they push apart.
3: These pulls and pushes between magnets are called magnetic forces.
4: The strength of a force is called its magnitude.
5: The greater the magnitude of the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
6: You can change the magnitude of a magnetic force between two magnets by using magnets of different sizes.
7: The magnitude of the magnetic force is smaller when the magnets are smaller.
8: The magnets in Pair 1 attract.
9: The magnets in Pair 2 repel.
10: But whether the magnets attract or repel affects only the direction of the magnetic force.
11: It does not affect the magnitude of the magnetic force.
12: Magnet sizes affect the magnitude of the magnetic force.
13: Imagine magnets that are the same shape and made of the same material.
14: The smaller the magnets, the smaller the magnitude of the magnetic force between them.
15: Magnet A is the same size in both pairs.
16: But Magnet B is smaller in Pair 2 than in Pair 1.
17: So, the magnitude of the magnetic force is smaller in Pair 2 than in Pair 1.
18: The answer is C.

id: 4209

question: Which property do these three objects have in common?

choice: (A) yellow (B) slippery (C) scratchy

context: Select the best answer.

gold answer: B

wrong prediction:

Rationale:

0: An object has different properties.
1: A property of an object can tell you how it looks, feels, tastes, or smells.
2: Properties can also tell you how an object will behave when something happens to it.
3: Different objects can have properties in common.
4: You can use these properties to put objects into groups.
5: Look at each object.
6: For each object, decide if it has that property.
7: Yellow is a color.
8: This color is yellow.
9: None of the objects are yellow.
10: A scratchy object is rough and itchy against your skin.
11: All three objects are scratchy.
12: A wet paint brush is slippery when it is wet.
13: None of the objects are slippery.
14: The property that all three objects have in common is scratchy.
15: The answer is C.

id: 4400

question: Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

choice: (A) The strength of the magnetic force is the same in both pairs. (B) The magnetic force is weaker in Pair 1. (C) The magnetic force is weaker in Pair 2.

context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

gold answer: B

wrong prediction:

Rationale:

0: Magnets can pull or push on each other without touching.
1: When magnets attract, they pull together.
2: When magnets repel, they push apart.
3: These pulls and pushes between magnets are called magnetic forces.
4: The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
5: You can change the strength of a magnetic force between two magnets by changing the distance between them.
6: The magnetic force is weaker when the magnets are farther apart.
7: Distance affects the strength of the magnetic force.
8: When magnets are farther apart, the magnetic force between them is weaker.
9: The magnets in Pair 2 are farther apart than the magnets in Pair 1.
10: So, the magnetic force is weaker in Pair 2 than in Pair 1.
11: The answer is C.

id: 4418

question: Which solution has a higher concentration of blue particles?

choice: (A) Solution A (B) neither; their concentrations are the same (C) Solution B

context: The diagram below is a model of two solutions. Each blue ball represents one particle of solute.

gold answer: A

wrong prediction:

Rationale:

0: A solution is made up of two or more substances that are completely mixed.
1: In a solution, solute particles are mixed into a solvent.
2: The solute cannot be separated from the solvent by a filter.
3: For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution.
4: In this case, the salt is the solute.
5: The water is the solvent.
6: The concentration of a solute in a solution is a measure of the ratio of solute to solvent.
7: Concentration can be described in terms of particles of solute per volume of solvent.
8: concentration = particles of solute / volume of solvent In Solution A and Solution B, the blue particles represent the solute.
9: To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container.
10: Use the concentration formula to find the number of blue particles per milliliter.
11: Solution B has more blue particles per milliliter.
12: So, Solution B has a higher concentration of blue particles.
13: The answer is C.

id: 4469

question: Which property matches this object?

choice: (A) soft (B) colorful

context: Select the better answer.

gold answer: B

wrong prediction:

Rationale:

0: An object has different properties.
1: A property of an object can tell you how it looks, feels, tastes, or smells.
2: Properties can also tell you how an object will behave when something happens to it.
3: Look at the object.
4: Think about each property.
5: A soft object changes shape when pressed or squeezed.
6: The marbles are soft.
7: A colorful object has one or more bright colors.
8: The marbles are colorful.
9: The answer is A.

id: 4509

question: Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

choice: (A) neither; the samples have the same temperature (B) sample B (C) sample A

context: The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

gold answer: B

wrong prediction:

Rationale:

0: The temperature of a substance depends on the average kinetic energy of the particles in the substance.
1: The higher the average kinetic energy of the particles, the higher the temperature of the substance.
2: The kinetic energy of a particle is determined by its mass and speed.
3: For a pure substance, the greater the mass of each particle in the substance and the higher the average speed of the particles, the higher their average kinetic energy.
4: Each particle in sample A has more mass than each particle in sample B.
5: The particles in sample A also have a higher average speed than the particles in sample B.
6: So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
7: Because the particles in sample A have the higher average kinetic energy, sample A must have the higher temperature.
8: The answer is C.

id: 4541

question: Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

choice: (A) The strength of the magnetic force is the same in both pairs. (B) The magnetic force is stronger in Pair 2. (C) The magnetic force is stronger in Pair 1.

context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

gold answer: B

wrong prediction:

Rationale:

0: Magnets can pull or push on each other without touching.
1: When magnets attract, they pull together.
2: When magnets repel, they push apart.
3: These pulls and pushes between magnets are called magnetic forces.
4: The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
5: You can change the strength of a magnetic force between two magnets by changing the distance between them.
6: The magnetic force is stronger when the magnets are closer together.
7: Distance affects the strength of the magnetic force.
8: When magnets are closer together, the magnetic force between them is stronger.
9: The magnets in Pair 1 are closer together than the magnets in Pair 2.
10: So, the magnetic force is stronger in Pair 1 than in Pair 2.
11: The answer is C.