
Thermal Energy
Authored by Selena Herrera
Science
7th Grade
NGSS covered
Used 11+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Ava is observing a pot of water on the stove. Which of the following statements best describes the relationship between the temperature of the water and the kinetic energy of its molecules?
As temperature increases, molecules slow down.
As temperature increases, molecules speed up.
Temperature has no effect on the motion of molecules.
As temperature decreases, molecules speed up.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Michael and Sophia are observing a cup of hot coffee cooling down. What happens to the molecules of the coffee as the temperature decreases?
The molecules move faster.
The molecules stop moving.
The molecules move more slowly.
The molecules change direction.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Abigail and Ethan are observing a pot of water being heated on a stove. How would you explain the motion of water molecules as the temperature of the water rises?
The molecules remain still.
The molecules move more rapidly.
The molecules vibrate in place.
The molecules disappear.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Benjamin places a hot cup of coffee in a cold room. What will happen to the kinetic energy of the coffee molecules over time?
It will increase.
It will decrease.
It will remain the same.
It will fluctuate randomly.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Anika is holding a balloon at a birthday party. If she heats up the balloon, what will happen to the speed of the air molecules inside?
They will move more slowly.
They will move faster.
They will stop moving.
They all move in the same direction.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-5
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Michael and Emma are conducting an experiment. They put an ice cube in water, and the water's temperature begins to drop. What happens to the kinetic energy of the water molecules?
It increases.
It decreases.
It stays the same.
It becomes negative.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Michael and Nora are observing a pot of water being heated on a stove. Which of the following best explains why the water molecules move faster as the temperature increases?
Heat makes molecules change size.
Heat energy transfers into kinetic energy, making molecules move faster.
Molecules change shape when heated, making them move faster.
Molecules are unaffected by heat.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
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