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Science Midterm Awsaj

Total questions: 41

Worksheet time: 1hrs 19mins

Name
Class
Date
1.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
2.
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 
3.
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 
4.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
5.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
6.
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 
7.
What are the two factors that affect kinetic energy?
a)
time and energy
b)
power and mass
c)
mass and speed
d)
time and work
8.
What is the unit of measurement for kinetic energy
a)
Newton
b)
Joule
c)
Watt
d)
Kilogram
9.
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. 
d)
leaves rolling down a hill 
10.

An object falling from 50m will have _____ potential than an object falling from 30m.

a)

greater

b)

less

c)

equal

d)

lower

11.
When you are holding a book, energy is stored between the book and Earth; this type of energy is called ________ potential energy. 
a)
Kinetic
b)
Elastic
c)
Gravitional
d)
Chemical
12.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
13.

An object at rest does not move because it has ____________

a)

an unbalanced force

b)

acceleration

c)

meters per second every second

d)

inertia

14.

Figure the PE.

mass= 3 kg

gravity= 9.8m/s2

height= 40m

a)

1176

b)

1716 J

c)

1176 J

d)

1761

15.

Solve

PE= 52 J

mass= ?

gravity= 9.8 m/s2

height= 18 m

a)

.29 kg

b)

1.76 m

c)

2.9 kg

d)

176.4 m

16.

Solve for h.

PE= 74 J

mass= 3.8 kg

gravity= 9.8 m/s2

height= ?

a)

1.99 m

b)

199

c)

19.9 m

d)

19 m

17.

How fast is a ball rolling if it contains 98 J of kinetic energy and has a mass of 4 kg?

a)

49

b)

7 m/s

c)

492

d)

7

18.

Find the mass of a car that is traveling at a velocity of 60 m/s North. The car has 5,040,000 J of kinetic energy.

a)

280 kg

b)

28 kg

c)

2800 kg

d)

2.8 kg

19.

Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.

a)

4,386,250 J

b)

438625

c)

4.38 kg

d)

438,625 m/s

20.

Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.

a)

14 J

b)

1453 J

c)

15453 kg

d)

14,553 J

21.

An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the automobile if it contains 362,600 J of potential energy.

a)

1.850 J

b)

1850 g

c)

18 g

d)

1850 J

22.

A roller coaster has a mass of 250 kg, and is 50 meters above the ground, what is the potential energy?

a)

122,625 Joules

b)

5,600 Joules

c)

234,799 Joules

d)

122,500 Joules

23.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
24.

Which of the following is a renewable resource?

a)

Oil

b)

Solar

c)

Coal

d)

Natural Gas

25.

Geothermal energy uses heat from ____ to produce electricity.

a)

the earth

b)

coal

c)

oil

d)

natural gas

26.

What type of power plant uses the potential energy of water trapped behind a dam?

a)

nuclear power plant

b)

hydroelectric power plant

c)

solar station

d)

coal burning power plant

27.

What type of power plant uses scraps from farming, waste products and wind to generate electricity?

a)

Hydroelectric Power Plant

b)

Geothermal Power Plant

c)

Biomass Power Plant

d)

Nuclear Power Plant

28.

Which are non renewable resources?

(Choose all correct answers)

a)

natural gas

b)

coal

c)

water in a dam

d)

oil

e)

nuclear energy

29.

We should use renewable energy because

a)

it is produced by farm animals.

b)

it is a good way to decrease our need to use nonrenewable resources.

c)

we have lots of coal and oil available for us to use.

d)

it is the only way to produce energy.

30.
What does conserving resources mean?
a)
Use as much of the resources as you can
b)
Only use the resources at school
c)
Protecting the resource so it does not run out
31.
The poster shown below advertises tours of a power plant.
This power plant produces electricity most likely by using-
a)
fossil fuels
b)
biofuels
c)
solar energy
d)
geothermal energy
32.
Alternative energy is
a)
Generated by natural resources and is renewable
b)
man made
c)
nonrenewable
d)
not helpful to us in Texas
33.
Based on the data collected, which source of alternative energy is most efficient?
a)
Coal
b)
Wind
c)
Natural gas
d)
Solar
34.
What does "circumference" mean?
a)
Space a circle takes up
b)
Distance around a circle
c)
Line from one side of a circle to another
d)
Line from center of circle to side
35.
What is the diameter?
a)
8
b)
16
c)
10
d)
4
36.
What is the circumference?
a)
36
b)
18pi
c)
108pi
d)
36pi
37.
Steven purchases a bowl. The diameter of the bowl is 14 cm. What is the circumference of the bowl?
a)
28 cm
b)
43.98 cm
c)
87.96 cm
d)
7 cm
38.
Daniel wants to buy cookies for her friend. The radius of a cookie is 5 inches. What is the cookie’s circumference?
a)
10 in
b)
2.5 in
c)
15.7 in
d)
31.4 in 
39.
find the area of the circle below.
a)
100 cm
b)
225 cm
c)
9 cm
d)
28.26 cm
40.
A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?
a)
31.25 m2
b)
29.55 m2
c)
30.36 m2
d)
28.26 m2
41.
find the area of the circle below.
a)
100 cm
b)
225 cm
c)
9 cm
d)
28.26 cm

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