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KE PE VCR Physical Science 2020

Total questions: 45

Worksheet time: 55mins

Name
Class
Date
1.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
2.

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

a)

1457 Joules

b)

22,584 Joules

c)

15 Joules

d)

45,167Joules

3.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
4.

The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.

a)

Something Mr. Lance likes to say.

b)

Life

c)

Law of Conservation of Energy

d)

The scientific method

e)

Newton's Third Law

5.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill 
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall 
d)
d. a piece of coal before it's burned 
6.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
7.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
8.
Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
9.
How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
10.
What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s
a)
676 J
b)
3.25 J
c)
17J
d)
338 J
11.
What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s
a)
50 J
b)
5 J
c)
250 J
d)
25 J
12.

The highest inhabited town in the world has an elevation of 5334 m above sea level. What would be the gravitational potential energy of a 64 kg person in this town?

a)

341,376 J

b)

83.3 J

c)

3,345,484.8 J

d)

34,834.3 J

13.

What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?

a)

5,220,411 J

b)

532,695 J

c)

73.7 J

d)

54,356.6 J

14.

What is the gravitational potential energy of a 26 kg eagle, flying at an altitude of 65 m at a speed of 19 m/s?

a)

32,110 J

b)

1690 J

c)

172.4 J

d)

16,562 J

15.

An Olympic high jumper, with a mass of 82 kg, has a maximum gravitational potential energy of 1970 J. How high was the jump?

a)

24 m

b)

161,540 m

c)

2.5 m

d)

201 m

16.

The world record for pole vaulting is 6.15 m. I the pole vaulter’s gravitational potential energy is 4942 J, what is his mass?

a)

803.6 kg

b)

504.3 kg

c)

30,393.3 kg

d)

82 kg

17.

One of the tallest radio towers is in Fargo, North Dakota. The tower is 629 m tall. If a bird lands on top of the tower, so that the gravitational potential energy associated with the bird is 2033 J, what is its mass?

a)

1,278,757 kg

b)

12,531,819 kg

c)

3.25 kg

d)

0.330 kg

e)

0.309 kg

18.

An automobile to be transported by ship is raised 7.0 m above the dock. If its gravitational potential energy is 66,000 J, what is the automobile’s mass?

a)

4,527,600 kg

b)

462,000 kg

c)

962.1 kg

d)

9428.6 kg

19.

The largest sea turtle found in the United States had a mass of 860 kg. If the gravitational potential energy associated with the turtle as it was being lifted onto a ship was 20,000 J, how high above the water was the turtle?

a)

2.37 m

b)

23.3 m

c)

17,200,000 m

d)

168,560,000 m

20.

In 1993, Cuban athlete Javier Sotomayor set the world record for the high jump. The gravitational potential energy associated with Sotomayor’s jump was 1970 J. Sotomayor’s mass was 82.0 kg. How high did Sotomayor jump?

a)

1,583,092 m

b)

24.6 m

c)

2.5 m

d)

161,540 m

21.

On a distant planet, the GPE of a 65 kg astronaut is 11,115 J when they are on a 45 m tall cliff. What is the acceleration due to gravity on this planet?

a)

16,055 m/s2

b)

0.26 m/s2

c)

3.8 m/s2

d)

9.8 m/s2

22.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
23.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
24.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
25.
What kind of energy is in a waving hand?
a)
Potential
b)
Kinetic
26.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
27.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
28.
Food has _________ energy. 
a)
Potential 
b)
Kinetic 
c)
None of the above 
d)
All of the above 
29.
Voltage is measured in __.
a)
volts.
b)
watts.
c)
coulombs. 
30.
Current has units: 
a)
kilowatt·hour 
b)
ampere 
c)
coulomb 
d)
volt 
31.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from one source. 
c)
Electricity flows along more than one pathway. 
d)
The flow of electricity comes from more than one source. 
32.
What kind of circuit is this?
a)
series
b)
parallel
33.

What type of circuit is the image showing?

a)

Parallel

b)

Series

c)

No circuit

34.
A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance
a)
58 Amps
b)
0.33 Amps
c)
13 Amps
d)
1 Amp
35.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
36.
If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?
a)
5 V
b)
12 V
c)
0.2 V
d)
20 V
37.
What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts
a)
15 Ohms
b)
4 Ohms
c)
0.3333 Ohms
d)
2 Ohms
38.

What equation links voltage, current and resistance

a)

V = IR

b)

V = CR

c)

V = I/R

d)

V = R/I

e)

V = C/R

39.

What does this symbol stand for?

a)

Voltmeter

b)

Resistor

c)

Resistance

d)

Fuse

40.

In a parallel circuit, if one connection is broken, all of the connections stop working.

a)

True.

b)

False.

41.

What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts

a)

15 Ohms

b)

4 Ohms

c)

0.3333 Ohms

d)

2 Ohms

42.

Where does the current get its voltage from?

a)

The lightbulb

b)

The battery

c)

The wires

43.

Which of the circuits in the diagram are series circuits?

a)

A

b)

B

c)

C

d)

D

44.

Which of the circuits in the diagram are parallel circuits?

a)

A

b)

B

c)

C

d)

D

45.

________________ Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.

a)

Ohm's

b)

Newton's

c)

Criminal

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