Chapter 10: Energy and Its Transformations

Question 1

Energy is the ability to do ______ or cause change.

Answer 1

work

Question 2

Kinetic energy is the energy of ______.

Answer 2

motion

Question 3

Potential energy is ______ energy that an object has due to its position or condition.

Answer 3

stored

Question 4

The Law of Conservation of Energy states that energy cannot be created or ______.

Answer 4

destroyed

Question 5

A roller coaster at the top of a hill has maximum ______ energy.

Answer 5

potential

Question 6

A moving car has ______ energy.

Answer 6

kinetic

Question 7

A stretched rubber band has ______ potential energy.

Answer 7

elastic

Question 8

A ball rolling down a hill transforms potential energy into ______ energy.

Answer 8

kinetic

Question 9

The form of energy we see from the sun is called ______ energy.

Answer 9

light

Question 10

When you eat food, your body uses its ______ energy.

Answer 10

chemical

Question 11

Electricity is a form of ______ energy.

Answer 11

electrical

Question 12

Sound energy is caused by ______.

Answer 12

vibrations

Question 13

Thermal energy is also known as ______ energy.

Answer 13

heat

Question 14

Chemical energy is stored in the ______ of substances.

Answer 14

bonds

Question 15

When energy changes from one form to another, it is called an energy ______.

Answer 15

transformation

Question 16

Solar panels convert light energy into ______ energy.

Answer 16

electrical

Question 17

An electric fan transforms electrical energy into ______ energy.

Answer 17

mechanical

Question 18

When you clap your hands, kinetic energy turns into ______ energy.

Answer 18

sound

Question 19

A pendulum has the most kinetic energy at the ______ of its swing.

Answer 19

bottom

Question 20

Energy stored in the height of an object is called ______ potential energy.

Answer 20

gravitational

Question 21

Energy stored in a stretched object is called ______ potential energy.

Answer 21

elastic

Question 22

The energy from burning wood is both thermal and ______.

Answer 22

light

Question 23

A battery stores ______ energy.

Answer 23

chemical

Question 24

Energy transformations often release some energy as ______.

Answer 24

heat

Question 25

A lightbulb transforms electrical energy into light and ______ energy.

Answer 25

thermal

Question 26

What is energy? A. The ability to rest B. The ability to do work C. A type of matter D. Only found in machines

Answer 26

B - Energy is the ability to do work or cause change.

Question 27

Which of the following is an example of kinetic energy? A. A parked car B. A stretched rubber band C. A rolling ball D. A book on a shelf

Answer 27

C - A rolling ball is in motion, so it has kinetic energy.

Question 28

What type of energy is stored in food? A. Electrical B. Chemical C. Light D. Sound

Answer 28

B - Food contains chemical energy stored in its bonds.

Question 29

What type of energy does a stretched rubber band have? A. Kinetic B. Gravitational C. Elastic potential D. Thermal

Answer 29

C - Elastic potential energy is stored when stretched.

Question 30

When a ball falls, which type of energy increases? A. Potential B. Kinetic C. Chemical D. Sound

Answer 30

B - As a ball falls, potential becomes kinetic energy.

Question 31

What does the Law of Conservation of Energy state? A. Energy can be destroyed B. Energy can be created C. Energy transforms but is never lost D. Energy disappears in reactions

Answer 31

C - Energy cannot be created or destroyed, only changed.

Question 32

Which of these is NOT a form of energy? A. Thermal B. Gravity C. Chemical D. Sound

Answer 32

B - Gravity is a force, not a form of energy.

Question 33

Which transformation happens in a flashlight? A. Electrical to light B. Light to electrical C. Sound to electrical D. Mechanical to thermal

Answer 33

A - Flashlights use electrical energy to produce light.

Question 34

What energy does a person use when running? A. Sound B. Thermal C. Chemical D. Electrical

Answer 34

C - Your body converts chemical energy into kinetic when running.

Question 35

A solar panel changes ______ energy into electrical energy. A. Chemical B. Light C. Sound D. Thermal

Answer 35

B - Solar panels transform sunlight into electrical energy.

Question 36

Which of these has gravitational potential energy? A. A stone on the ground B. A stretched spring C. A ball at the top of a hill D. A running person

Answer 36

C - Objects held at a height have gravitational potential energy.

Question 37

Which form of energy is used to power a television? A. Chemical B. Kinetic C. Electrical D. Light

Answer 37

C - TVs use electrical energy to work.

Question 38

When you clap, kinetic energy turns into what form? A. Chemical B. Sound C. Electrical D. Light

Answer 38

B - The motion of clapping hands produces sound energy.

Question 39

Which transformation happens in a microwave oven? A. Chemical to light B. Electrical to radiant and thermal C. Light to mechanical D. Sound to thermal

Answer 39

B - Microwaves convert electrical energy into radiant and heat.

Question 40

What kind of energy does a moving bicycle have? A. Chemical B. Potential C. Kinetic D. Electrical

Answer 40

C - Moving objects like bicycles have kinetic energy.

Question 41

What type of energy is stored in a battery? A. Kinetic B. Thermal C. Sound D. Chemical

Answer 41

D - Batteries store chemical energy for later use.

Question 42

What type of energy is created when you rub your hands together? A. Sound B. Light C. Chemical D. Thermal

Answer 42

D - Friction creates thermal energy when rubbing hands.

Question 43

A book falling off a shelf shows transformation from ______ to kinetic energy. A. Electrical B. Potential C. Sound D. Thermal

Answer 43

B - The book starts with potential energy due to height.

Question 44

Which energy form is released when wood is burned? A. Mechanical B. Electrical C. Thermal D. Nuclear

Answer 44

C - Burning releases thermal energy as heat.

Question 45

What is true about energy in transformations? A. It disappears B. It increases C. It is lost forever D. It changes form

Answer 45

D - Energy is transformed but not lost.

Question 46

What is an example of elastic potential energy? A. A stretched slingshot B. A moving ball C. A hot stove D. A falling apple

Answer 46

A - Stretched elastic items store elastic potential energy.

Question 47

When you turn on a lightbulb, some energy becomes light and some becomes ______. A. Electrical B. Sound C. Thermal D. Chemical

Answer 47

C - Lightbulbs release heat along with light energy.

Question 48

Which object uses chemical to kinetic energy? A. Solar panel B. Electric fan C. Athlete running D. Light bulb

Answer 48

C - Food's chemical energy fuels muscle movement.

Question 49

Which of the following has the most kinetic energy? A. A feather falling B. A parked car C. A rolling bowling ball D. A rock on a ledge

Answer 49

C - A heavy, fast-moving object has high kinetic energy.

Question 50

Why does a pendulum slow down over time? A. It loses mass B. Energy disappears C. Energy transforms to sound and heat D. It stores more energy

Answer 50

C - Energy is not lost, just changes to heat and sound.