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WorksheetsRennalls Unit 2 Physical Science Quiz
Total questions: 20
Worksheet time: 10mins
What is energy? Choose the best answer.
Anything that radiates light or heat.
Anything that travels in the form of a wave.
Anything that makes matter move or change.
Which of these objects has kinetic energy?
A ball moving through the air.
A ball sitting on the edge of a cliff.
What is the difference between kinetic energy and potential energy?
Potential energy is the energy of objects at rest; kinetic energy is the energy of objects in motion
Kinetic energy is the energy of objects at rest; potential energy is the energy of objects in motion
Potential energy has to do with chemistry; kinetic energy has to do with physics.
Which of the following objects has the most potential energy?
A ball sitting on a table.
A ball sitting on a mountaintop.
A ball that's been thrown into the air.
What would happen if you didn't have chemical energy in your body? Choose the best answer.
You wouldn't be able to move.
You wouldn't be able to sleep.
You wouldn't be able to sit.
Which of the following is an opinion about energy?
Power plants and batteries supply us with electrical energy
Chemical energy is the most important source of energy
Kinetic energy is the energy of motion
What do wind and moving water have in common?
They both have mechanical energy.
They both have chemical energy.
They both have light energy.
How is nuclear energy released?
By burning fuel
By chemicals mixing
By atoms fusing together or splitting apart
What is potential energy?
The energy an object has due to its position or condition.
The energy an object has due to its motion.
The energy an object has due to its chemical composition.
When does a yo-yo have the most potential energy?
When it's moving between its highest and lowest points.
When it's at its highest point.
When it's at its lowest point.
When is potential energy transformed into kinetic energy?
When an object at rest is lifted to a higher elevation.
When an object at rest is put into motion.
When an object in motion is stopped and put at rest.
Why do objects at high elevations have more potential energy than objects at low elevations?
Because the thinner air at higher elevations means objects have a greater potential to move very fast
Because objects at high elevations are closer to the sun, which is the source of all energy on earth
Because objects at high elevations tend to move slower than objects at low elevations
Because gravity gives objects at high elevations the potential to fall much further
There is a finite amount of energy in the universe. What does this mean?
Energy is created and destroyed all the time.
There is a limited amount of energy in the universe.
Stars generate most of the energy in the universe.
Compared to ice, how do molecules of water behave?
They move less freely.
They move more freely.
What's the easiest way to add energy to matter?
Heating it
Cooling it
Decreasing pressure
What is it called when a solid turns directly into a gas?
Sublimation
Vaporization
Melting
How do the molecules of a gas behave?
They vibrate in place
They bounce around randomly
They are locked in a crystal lattice
If you put a thermometer into a pot of melting ice, when will the temperature rise past zero?
As soon as the ice begins to melt.
When all the ice has melted.
When the ice begins turning into steam.
What's the difference between a hypothesis and a theory?
"Theory" is another word for "fact;" "hypothesis" is another word for "guess."
Theories have been confirmed through tests; hypotheses haven't.
Theories contain many hypotheses; a hypothesis only contains one theory.
What happens if you test a hypothesis multiple times and the data doesn't support your prediction?
Change the data to support your prediction
Run the experiment again until you get the results you're looking for
Re-think your hypothesis
