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Energy

Total questions: 37

Worksheet time: 35mins

Name
Class
Date
1.
What is the form of energy that is created using heat?  This form of energy makes particles of matter move faster.
a)
light energy
b)
thermal energy
c)
chemical energy
d)
kinetic energy
2.
What is a form of energy that is the result of chemicals reacting to each other or to some action?
a)
light energy
b)
thermal energy
c)
chemical energy
d)
kinetic energy
3.
What is energy of motion?
a)
light energy
b)
thermal energy
c)
chemical energy
d)
kinetic energy
4.
What is energy made available by the flow of electric charge through a conductor?
a)
electrical energy
b)
solar energy
c)
mechanical energy
d)
potential energy
5.
What is energy from the sun?
a)
electrical energy
b)
solar energy
c)
mechanical energy
d)
potential energy
6.
What is the energy something has because of its position?
a)
electrical energy
b)
solar energy
c)
mechanical energy
d)
potential energy
7.
What is the ability to do work or cause change?
a)
reflect
b)
energy
c)
refract
d)
absorb
8.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
9.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
10.
What is mechanical energy?
a)
It is what metal creates when heated.
b)
All potential and kinetic energy in a system.
c)
It is motion of all matter.
d)
Energy of momentum.
11.
What does the Law of Conservation of Energy state?
a)
Energy cannot be created or destroyed
b)
Nothing can exchange energy
c)
Energy will increase over time.
d)
Energy will decrease over time.
12.
Work is:
a)
A transfer of energy by a force to move and object
b)
Something you get paid for
c)
Something you take home
d)
Makes you sweat
13.
A 40 kg crate is picked up by a crane to a height of 50m. The crate falls. What is the velocity of the crate just before it hits the ground?
a)
2000 Joules
b)
19,600 Joules
c)
19,600 m/s
d)
31.3 m/s
14.
Power is defined as the
a)
force on an object times the distance the object moves.
b)
force on an object divided by the time the force acts.
c)
work done times the time taken to do that work.
d)
work done on an object divided by the time to do the work
15.

What energy transformation occurs as howler monkeys loudly call to each other in the forest?

a)

Chemical --> Mechanical --> Sound

b)

Chemical --> Sound --> Thermal

c)

Sound --> Chemical --> Radiant

d)

Mechanical --> Chemical --> Sound

16.

What energy transformation occurs as as an elephant walks through the savanna?

a)

Thermal --> Chemical + Mechanical

b)

Mechanical --> Chemical + Thermal

c)

Radiant --> Chemical + Mechanical

d)

Chemical --> Mechanical + Thermal

17.

What energy transformation occurs during photosynthesis?

a)

Chemical --> Radiant

b)

Thermal --> Chemical

c)

Radiant --> Chemical

d)

Mechanical --> Thermal

18.

units for work are

a)

newtons

b)

joules

c)

meters

d)

seconds

19.

if you push a cart with a force of 60 N for 2 m... how much work have you done

a)

120 J

b)

30 J

c)

120 N

d)

30 N

20.
What is the formula for work?
a)
Force = work x distance
b)
Distance = force x work
c)
Work = force x distance
d)
Work = force x mass
21.

If 40N of force is applied to Rollo Koster's 10 kg cart over a distance of 50 meters, how much work is done?

a)

8000J

b)

8000N

c)

4000J

d)

2000J

22.

If Jay Loppy pushes his van 20 meters how much work is done?

a)

2,000J

b)

40,000J

c)

10,000J

d)

800,000J

23.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

24.
True or false: when the distance an object moves is zero the work done on the object is also zero.  
a)
True
b)
False
25.

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.

a)

Person A

b)

Person B

26.
You move an 8-newton weight five meters in 4 seconds. How much power have you generated?
a)
160 watts
b)
10 watts
c)
6.4 watts
d)
17 watts
27.
Which of the following would produce the most power?
a)
A mass of 10 kilograms lifted 10 meters in 10 seconds 
b)
A mass of 10 kilograms lifted 10 meters in 5 seconds
c)
A mass of 5 kilograms lifted 10 meters in 5 seconds
d)
A mass of 5 kilograms lifted 5 meters in 10 seconds
28.
Which material is the best conductor of heat?
a)
glass
b)
styrofoam
c)
metal
d)
wood
29.
Which activity for staying warm in a cold forest uses insulation?
a)
covering yourself with leaves
b)
getting out of wind by climbing to a higher spot
c)
sitting near water
d)
drinking a warm liquid
30.

What is the intended purpose of a camp fire?

a)

chemical and sound energy

b)

heat and light energy

c)

electrical and mechanical energy

d)

sound and magnetic energy

31.
Heat moves easily through materials called ____
a)
Conductors
b)
Insulators
32.

What is the BEST reason cooking pots are made out of the materials aluminum, copper, and sometimes glass?

a)

They are able to stop the flow of heat.

b)

They are good conductors of heat.

c)

They keep the same amount of heat.

d)

They are good insulators of heat.

33.

How does heat move?

a)

In many directions

b)

from warm places to cooler places

c)

from cold places to warm places

d)

Both B and C

34.

If you burn your hand on the handle of a hot pot, heat was transferred to your skin by

a)

conduction

b)

convection

c)

radiation

d)

equilibrium

35.

What type of energy transfer occurs when hot water flows through cool water?

a)

insulation

b)

radiation

c)

conduction

d)

convection

36.

What is the term that refers to a material being a poor conductor of heat?

a)

Insulator

b)

conductor

c)

Convector

d)

Radiator

37.

What type of thermal energy transfer is number 2 pointing to?

a)

Convection

b)

Conduction

c)

Radiation

d)

Insulation

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