Quiz about 24-25 Energy Review

Question 1

_________ is a measurement of how much force is applied over a certain distance.

Accepted Answer

Work

Answer

Power

Answer

Energy

Answer

Gravity

Question 2

What is the unit of measurement of energy?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Meter

Question 3

If you toss a baton straight up, total energy decreases as the baton rises.

Accepted Answer

False

Answer

True

Question 4

Potential energy and kinetic energy have a direct relationship, meaning that, as one goes up, the other also goes up.

Accepted Answer

False

Answer

True

Question 5

Potential energy depends on the ______ and ______ of the object.

Accepted Answer

Height (position), Mass

Answer

Height (position), Speed

Answer

Friction, Speed

Answer

Mass and speed

Question 6

Kinetic energy depends on the _____ and _______ of the object.

Accepted Answer

Mass, speed

Answer

Height (position), speed

Answer

Height (position), mass

Answer

Friction, speed

Question 7

Choose the answer that does NOT relate to potential energy.

Accepted Answer

motion or movement

Answer

The energy an object has due to its position.

Answer

stored energy.

Answer

elastic energy.

Answer

chemical energy

Question 8

Energy in motion is an example of what type of energy?

Accepted Answer

kinetic

Answer

potential

Answer

chemical

Answer

nuclear

Answer

electrical

Question 9

Riding a bike is an example of what kind of energy?

Accepted Answer

mechanical

Answer

potential

Answer

sound

Answer

chemical

Answer

electrical

Question 10

Hitting a tennis ball is an example of what kind of energy?

Accepted Answer

mechanical

Answer

potential

Answer

sound

Answer

chemical

Answer

electrical

Question 11

A CD player turns the initial ________ energy  into   ____________ energy as it spins the disc.

Accepted Answer

electrical, mechanical

Answer

potential, sound

Answer

kinetic, thermal

Answer

chemical, electrical

Answer

mechanical, electrical

Question 12

Energy from the sunlight is an example of what kind of energy?

Accepted Answer

radiant

Answer

sound

Answer

chemical

Answer

mechanical

Question 13

When a basketball has gone through the hoop and is halfway from the goal to the ground, it has what type of energy?

Accepted Answer

both potential and kinetic energy

Answer

potential energy

Answer

kinetic energy

Question 14

Friction turns mechanical energy into what type of energy?

Accepted Answer

thermal

Answer

sound

Answer

electrical

Answer

radiant

Question 15

A hairdryer turns electrical energy into what type of energy?

Accepted Answer

thermal

Answer

sound

Answer

electrical

Answer

radiant

Question 16

In photosynthesis, a plant uses the sunlight and turns   __________ energy into ___________ energy.

Accepted Answer

radiant ; chemical

Answer

thermal ; chemical

Answer

potential ; mechanical

Answer

nuclear; chemical

Question 17

According to the law of conservation of energy...

Accepted Answer

energy is neither created or destroyed.

Answer

individuals should conserve energy by reducing waste.

Answer

turning off water when not being used will help save the earth.

Answer

stored up energy will lose its power over time.

Question 18

Energy stored in the nucleus of an atom is

Accepted Answer

nuclear energy

Answer

radiant energy

Answer

thermal energy

Answer

chemical energy

Question 19

Another word for radiant energy is ___________ energy.

Accepted Answer

light

Answer

electrical

Answer

thermal

Answer

mechanical

Question 20

When we sing, we convert the mechanical energy in our vocal chords to __________________.

Accepted Answer

sound

Answer

wasted

Answer

potential

Answer

electrical

Question 21

Can an object have both kinetic and potential energy at the same time?

Accepted Answer

Yes

Answer

No

Question 22

As an object falls, its _____________ energy is decreasing as its ______________ energy is increasing.

Accepted Answer

potential, kinetic

Answer

kinetic, potential

Answer

mechanical, thermal

Answer

elastic, mechanical

Question 23

A flock of sheep are grazing in a field. As they eat, the sheep break down the molecules in the grass, which releases energy. Which form of energy is stored in the grass?

Accepted Answer

Chemical energy

Answer

Elastic energy

Answer

Nuclear energy

Answer

Thermal energy

Question 24

Edith strikes a match and sets some logs on fire. As the fire burns, which two forms of energy are released?

Accepted Answer

light(radiant) and thermal

Answer

chemical and light

Answer

thermal and electrical

Answer

electrical and chemical

Question 25

The figure shows a toaster that toasts (cooks) bread. Which energy conversion takes place when a toaster is switched on?

Accepted Answer

electrical to thermal

Answer

chemical to sound

Answer

electrical to sound

Answer

chemical to thermal

Question 26

A student is investigating potential and kinetic energy by stretching a spring across a table. When the student lets go, the spring recoils. At which time is potential energy in the spring being converted into kinetic energy?

Accepted Answer

when the spring is recoiling

Answer

when the spring is stretching

Answer

when the spring is fully stretched

Answer

when the spring is fully recoiled

Question 27

A student is investigating potential and kinetic energy by stretching a spring across a table. When the student lets go, the spring recoils. Which picture shows the spring when it has the most potential energy?

Accepted Answer

when the spring is fully stretched

Answer

when the spring is stretching

Answer

when the spring is recoiling

Answer

when the spring is fully recoiled

Question 28

Two shopping carts are loose in a parking lot. One cart has lots of food in it, so it has a lot of mass. The other cart is empty. The parking lot is on a slight hill, so both carts are moving down the hill towards a parked car. They may cause a dent in the car when they hit it. What additional information do you need to know to figure out which cart will have the greatest KE when they hit the parked car?

Accepted Answer

the speed (velocity) that each cart is moving

Answer

The exact mass of each cart

Answer

the exact distance away the car is

Answer

the density of each cart

Question 29

You're watching a movie. In the movie, two huge Big Mack trucks are speeding down the highway. One truck is driven by the bad guy, and the other truck is driven by the really, really bad guy. They are going the exact same speed! Suddenly, a train stops on the tracks right in the roadway. Both trucks are going to hit the train car! What additional information do you need to know to figure out which truck would hit the train with the most kinetic energy?

Accepted Answer

the mass of each truck.

Answer

the type of road surface

Answer

the mass of the train car

Answer

the speed the train was traveling

Question 30

What is the sequence of the energy transformation represented in the diagram?

Accepted Answer

solar(radiant) to electrical to mechanical

Answer

mechanical to chemical to solar

Answer

mechanical to electrical to solar

Answer

solar to chemical to electrical

Question 31

A person uses a bow to shoot an arrow at a target. In which diagram does the bow and arrow have the greatest amount of potential energy?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 32

A bowling ball is rolled down a bowling alley towards some pins. If you wanted to make the bowling ball hit the pins with more kinetic energy, what could you change?

Accepted Answer

Use a bowling ball with a bigger mass

Answer

make the bowling alley longer

Answer

decrease the speed of the bowling ball

Answer

set the bowling pins closer together

Question 33

Two marbles that both have a mass of 10 grams are dropped to the ground. The green marble is dropped from 1 meter high and the blue marble is dropped from 2 meters high. Which statement best describes the amount of energy when each marble hits the ground?

Accepted Answer

the blue marble will have more energy because it has more gravitational potential energy.

Answer

they will have the same amount of energy because they have the same mass

Answer

the green marble will have more energy because it was dropped closer to the ground

Answer

None of the above.

Question 34

Alice carried out an experiment using the pendulum. She lifted the metal ball and let it swing freely for a period of time. Which of the following graphs shows the change in the potential energy of the metal ball as it was first swung from A to B and then to C?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 35

David aims and shoots a basketball into the net. The dotted arrows in the diagram above show the path of the basketball. At which point is the kinetic energy the highest?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 36

David aims and shoots a basketball into the net. The dotted arrows in the diagram above show the path of the basketball. At which point is the potential energy the highest?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 37

What kind of energy does the car have at point a?

Accepted Answer

potential

Answer

kinetic

Question 38

What kind of energy does the car have at point c?

Accepted Answer

kinetic

Answer

potential

Question 39

Which point best shows potential energy being converted into kinetic enegry?

Accepted Answer

b

Answer

a

Answer

c

Answer

d

Question 40

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

Accepted Answer

10 meters/second

Answer

10 seconds

Answer

100 meters/second

Answer

1000 meters/second

Question 41

There is a bell at the top of a tower that is 45 m high.  The bell has a mass of 190 kg.  The bell has ____________ energy equal to ______________.

Accepted Answer

Potential; 83,790 J

Answer

Potential; 8,550 J

Answer

Potential; 821,142 J

Answer

Kinetic; 8,550 J

Answer

Kinetic; 83,790 J

Question 42

A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg.  The car has _________ energy equal to ___________.

Accepted Answer

Kinetic; 896,000 J

Answer

Potential; 22,400 J

Answer

Potential; 896,000 J

Answer

Kinetic; 439,040 J

Question 43

What is the kinetic energy of a 2,000 kg boat moving at 5 m/s?

Accepted Answer

25,000 J

Answer

5,000 J

Answer

10,000 J

Answer

98,000 J

Question 44

You are on rollerblades at the top of a small hill.  Your potential energy is equal to 1,000 J.  The last time you checked, your mass was 60 kg.  What is the height of the hill?

Accepted Answer

1.7 m

Answer

0.17 m

Answer

3.4 m

Answer

16.7 m

Question 45

According to the graph below, what was the kinetic energy of the lander when it had a mass of 1200 kg?

Accepted Answer

1,500 kJ

Answer

1,000 kJ

Answer

2,000 kJ

Answer

2,500 kJ

Question 46

According to the graph below, what kind of relationship is there between kinetic energy and mass?

Accepted Answer

Direct/Linear

Answer

Inverse

Answer

Exponential

Answer

There is no relationship between mass and Kinetic Energy

Question 47

According to the graph below, what was the velocity of the lander when it had ~1750 kJ of Kinetic Energy?

Accepted Answer

60 m/s

Answer

20 m/s

Answer

70 m/s

Answer

90 m/s

Question 48

According to the graph below, what kind of relationship is there between kinetic energy and velocity?

Accepted Answer

Exponential

Accepted Answer

Direct/Linear

Answer

Inverse

Answer

There is no relationship between velocity and Kinetic Energy

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