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Energy Transfer and Heat Review

Total questions: 28

Worksheet time: 17mins

Name
Class
Date
1.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
2.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
3.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
4.

Which object has more potential energy.


Use PE = m * g * h


g = 9.8 m/s2

a)

The 35 kg object at 50 meters above the ground.

b)

The 55 kg object at 30 meters above the ground.

5.

Identify the correct statement for each step in the diagram.


Which of these is true for step a?

a)

Kinetic energy increases while potential energy decreases.

b)

Potential energy is at a minimum.

c)

Kinetic energy decreases while potential energy increases.

d)

Potential energy is at a maximum.

6.

Identify the correct statement for each step in the diagram.


Which of these is true for step b?

a)

Kinetic energy increases while potential energy decreases.

b)

Potential energy is at a minimum.

c)

Kinetic energy decreases while potential energy increases.

d)

Potential energy is at a maximum.

7.

Identify the correct statement for each step in the diagram.


Which of these is true for step c?

a)

Kinetic energy increases while potential energy decreases.

b)

Potential energy is at a minimum.

c)

Kinetic energy decreases while potential energy increases.

d)

Potential energy is at a maximum.

8.

Identify the correct statement for each step in the diagram.


Which of these is true for step d?

a)

Kinetic energy increases while potential energy decreases.

b)

Potential energy is at a minimum.

c)

Kinetic energy decreases while potential energy increases.

d)

Potential energy is at a maximum.

9.

Look at this diagram.


Which chart below best matches the energy of the skier while they are travelling down the mountain?

a)
b)
c)
d)

All of these are wrong.

10.
Rising warm air is an example of _______________________.
a)
conduction
b)
convection
c)
radiation
11.
Which of the following is NOT a method of heat transfer?
a)
convection
b)
induction
c)
conduction
d)
radiation
12.
Higher temperatures mean faster moving molecules.
a)
true
b)
false
13.
Heat moves from __________ objects to ______________ objects.
a)
warmer, cooler
b)
cooler, warmer
c)
bigger, smaller
d)
smaller, bigger
14.
Heat is the transfer of ________ between substances of different temperatures.
a)
atoms
b)
molecules
c)
energy
d)
cells
15.
With convection, warm air ____________ and cold air _____________.
a)
rises, sinks
b)
sinks, rises
16.
Walking across hot sand with bare feet
a)
radiation
b)
conduction
c)
convection
17.
You accidently touching a hot stove
a)
radiation
b)
convection
c)
conduction
18.
Why does a blanket provide warmth to a person?
a)
it is a conductor of heat 
b)
it is unable to remain cool
c)
it is warmer than the air 
d)
it is an isulator
19.
You sit near a campfire
a)
radiation
b)
convection
c)
conduction
20.
Which it the best example of radiation?
a)
heater warming up a room
b)
melting ice cubes in your hand
c)
microwave cooking food
d)
baking cookies in the oven
21.
Which is the best example of conduction?
a)
hot air blow drying hair
b)
sun heating up a car
c)
water boiling on the stove
d)
ice cube melting in your hand
22.
Which is the best example of convection
a)
frying eggs in a pan
b)
melting ice cube in your hand
c)
microwave cooking food
d)
baking food in the oven
23.

Which of these is NOT a system?

a)

A computer.

b)

The circle of life.

c)

A factory.

d)

All of these are systems.

24.

What material is best for conduction?

a)

Metal

b)

Rock

c)

Water

d)

Air

25.

What material is worst for conduction?

a)

Metal

b)

Rock

c)

Water

d)

Air

26.

Which of these materials is capable of convection?

a)

Metal

b)

Rock

c)

Water

d)

Air

27.

Which of these materials is capable of radiation?

a)

Metal

b)

Rock

c)

Water

d)

Air

28.

Energy is the sum of its kinetic and potential energy.

E = PE + KE


Imagine you could stop time as a brick is falling. At that moment, it has a velocity of 10 m/s. It has a mass of 2.5kg. It is 4 meters above the ground. Gravity is 9.8 m/s2.

PE = m * g * h

KE = 1/2 * m *v2


Using what you know, what is the total energy of the brick?

a)

98 Joules

b)

48.02 Joules

c)

125 Joules

d)

223 Joules

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