Quiz about Conservation of Energy Lesson

Question 1

The Law of Conservation of Energy states:

Accepted Answer

Energy cannot be created or destroyed, it can only transformed

Answer

Energy can created or destroyed but not transformed

Answer

Energy can't be created, destroyed or transformed

Question 2

According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

Accepted Answer

The total amount of energy is conserved

Answer

The total amount of energy is less after a reaction

Answer

The total amount of energy is more after a reaction

Question 3

Which energy transformation below matches?
A book falling?

Accepted Answer

kinetic to sound and heat

Answer

chemical to sound and heat

Answer

electrical to sound and heat

Question 4

Which energy transformation below matches?
Water moving over a dam to move a generator?

Accepted Answer

kinetic to electrical

Answer

kinetic to chemical

Answer

solar to electrical

Question 5

Which energy transformation below matches?
Green plants?

Accepted Answer

solar to chemical

Answer

chemical to mechanical

Answer

chemical to heat

Question 6

Which energy transformation below matches?
Animals eating food?

Accepted Answer

chemical to kinetic

Answer

electrical to potential

Answer

potential to chemical

Question 7

Which energy transformation below matches?
Burning coal or carbon-based fuel at a powerplant?

Accepted Answer

chemical to heat to electrical

Answer

mechanical to chemical to sound

Answer

electrical to chemical to heat

Question 8

Which energy transformation below matches?
An electrical circuit?

Accepted Answer

electrical to heat, sound, light, mechanical

Answer

chemical to heat, sound, light, mechanical

Answer

solar to heat, sound, light, mechanical

Question 9

Potential or kinetic?
Stretched bow and arrow?

Accepted Answer

potential

Answer

kinetic

Question 10

Potential or kinetic?
Running?

Accepted Answer

kinetic

Answer

potential

Question 11

What kind of energy does an object possess when it's resting on top of the hill?

Accepted Answer

Potential Energy

Answer

None

Answer

Kinetic Energy

Answer

All

Question 12

Which specific type of energy is at point A?

Accepted Answer

Potential Energy

Answer

Kinetic Energy

Answer

Mechanical Energy

Answer

None

Question 13

Which specific type of energy is at point B?

Accepted Answer

Kinetic Energy

Answer

Potential Energy

Answer

Mechanical Energy

Answer

None

Question 14

Which specific type of energy is at point C?

Accepted Answer

Mechanical Energy

Answer

Potential Energy

Answer

Kinetic Energy

Answer

None

Question 15

What kind(s) of energy is(are) in a person climbing a ladder?

Accepted Answer

Both

Answer

Potential

Answer

Kinetic

Question 16

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?

Accepted Answer

The PE decreases while the KE increases

Answer

The PE and KE increase and decrease together

Answer

Impossible to know without knowing the mass

Question 17

At which point is potential energy greatest?

Accepted Answer

W

Answer

X

Answer

Y

Answer

Z

Question 18

A change from one form of energy to another is called ___________.

Accepted Answer

energy transformations

Answer

work

Answer

power

Answer

mechanical

Question 19

According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

Accepted Answer

The total amount of energy is conserved

Answer

The total amount of energy is less after a reaction

Answer

The total amount of energy is more after a reaction

Question 20

What is the energy of position or shape that depends on weight and height, also called stored energy?

Accepted Answer

Potential energy

Answer

Energy

Answer

Kinetic energy

Answer

Sound energy

Question 21

What states that energy can never be created or destroyed?

Accepted Answer

law of conservation of energy

Answer

law of conservation of momentum

Answer

law of conservation of matter

Answer

law of conservation of water

Question 22

As energy transformations occur within a system, the total energy of the system ___.

Accepted Answer

remains constant

Answer

increases

Answer

decreases

Answer

is transferred out of the system

Question 23

At which point(s) on the roller coaster is the kinetic energy at its maximum?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 24

At which point(s) on the roller coaster is the gravitational potential energy at its maximum?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 25

In general, the higher a rollercoaster....

Accepted Answer

the faster it can travel

Answer

the ratio between rotational and translation KE increases.

Answer

the less friction force it has

Answer

the slower it moves

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