WorksheetsDCP4 Review 18/19
Total questions: 70
Worksheet time: 1hrs 20mins
Name
Class
Date
1.
Are forces balanced or unbalanced when skateboarding down a ramp?
a)
Balanced
b)
Unbalanced
2.
Students pulled the same mass up an inclined plane that was 20 cm, 30 cm, and 40 cm long. Each time, they used a spring scale to measure the force needed to pull the mass up the inclined plane. What did they conclude?
a)
Less force was needed on the 20 cm plane
b)
More force was needed on the 40 cm inclined plane.
c)
The least amount of force was needed on the 40 cm inclined plane.
d)
The least amount of force was needed on the 30 cm inclined plane.
3.
If I want to use the least amount of force neccessary, I would need a
a)
long, steep ramp
b)
short, gentle ramp
c)
long, gentle ramp
d)
short, steep ramp
4.
A rock at the edge of a cliff.
a)
Potential
b)
Kinetic
5.
A basketball passing through the hoop.
a)
Potential
b)
Kinetic
6.
An acorn hanging from an oak tree.
a)
Potential
b)
Kinetic
7.
A foot kicking a football.
a)
Potential
b)
Kinetic
8.
Maximum kinetic energy
a)
A
b)
B
c)
C
d)
D
9.
The coaster at B is at -
a)
Maximum PE, Minimum KE
b)
Minimum PE, Minimum KE
c)
Minimum PE, Maximum KE
d)
Maximum PE, Maximum KE
10.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
11.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
same
12.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
13.
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
14.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
15.
Conservation of energy states that energy cannot be ________ or ________, but can be altered from one form to another.
a)
created, destroyed
b)
gravity, force
c)
heat, created
16.
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
17.
Which of the following is an exmaple of a change of kinetic energy into gravitational potential energy?
a)
a person parachuting out of a plane
b)
a car racing around an oval track
c)
a person skiing down a hill
d)
a person walking up a hill
18.
The longer the inclined plane, the ___________________ to move the object
a)
the less input force you need
b)
the more input force you need
c)
the more output force you need
d)
the less output force you need
19.
When an object is moved up a ramp, you need _________ effort than if it is just picked straight up.
a)
More
b)
Less
c)
same
20.
When you use an incline plane to raise an object, the ______ the distance you move it the less force you use.
a)
shorter
b)
longer
c)
distance does not matter
21.
A push or pull
a)
Force
b)
Effort
c)
Load
d)
Work
22.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
d)
less friction doesn't affect speed
23.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
24.
Force the opposes motion between 2 surfaces
a)
force
b)
Newton
c)
friction
d)
net force
25.
What type of energy is in this picture?
a)
Kinetic
b)
Elastic Potential
c)
Chemical
d)
Gravitational Potential
26.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
27.
According to which law of energy, energy can't be created or destroyed?
a)
First law of motion
b)
The law of tacos
c)
Laws of Energy
d)
law of conservation of energy
28.
Which point has the most potential energy?
a)
G
b)
f
c)
b
d)
a
29.
Which 2 letters have the most kinetic energy
a)
W & Y
b)
X & Z
30.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
31.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
32.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases
c)
The kinetic energy decreases while the potential energy increases
d)
Bothe the potential energy and kinetic energy increase
33.
A ball is released from rest at position 1. The diagram shows the ball in four positions as it rolls along a track from left to right. In which position does the ball have its minimum gravitational potential energy and maximum kinetic energy?
a)
1
b)
2
c)
3
d)
4
34.
When riding a roller coaster, you go up and down many hills. As you get to the top of a roller coaster, what energy change is taking place.
a)
Potential energy is changed into kinetic energy.
b)
Kinetic energy is changed into potential energy.
c)
Chemical energy is changed into heat energy.
d)
Heat energy is changed into chemical energy.
35.
When riding a roller coaster, you go up and down many hills. When do you have the maximum (most) kinetic energy?
a)
At the top of each hill.
b)
As you go down each hill.
c)
At the bottom of each hill.
d)
As you go up each hill.
36.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
37.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
38.
What is the energy transformation for this battery powered car?
a)
Chemical-sound-thermal-light
b)
Chemical-electrical-mechanical-sound
c)
mechanical-electrical-sound
d)
light-sound-mechanical
39.
Which object changes chemical energy into heat, light and sound energy
a)
blender
b)
firecracker
c)
lightbulb
d)
apple
40.
Name the Energy conversion from the Sun to a growing apple tree.
a)
Nuclear → Electrical
b)
Gravitational → Thermal
c)
Chemical → Motion
d)
Radiant → Chemical
41.
Which energy transformation is shown?
a)
electrical > radiant
b)
chemical > electrical > radiant
c)
mechanical > radiant
d)
electrical > thermal
42.
What is mechanical energy?
a)
The energy of movement
b)
The energy of making things warmer
c)
The energy that is stored in an object
d)
The energy that comes from electricity
43.
Which energy transformation is shown?
a)
mechanical > chemical
b)
radiant > chemical
c)
chemical > thermal
d)
chemical > mechanical
44.
The picture showing the energy conversion
Chemical → heat
is:
a)
b)
c)
d)
45.
The picture showing the energy conversion
Chemical → kinetic
is:
a)
b)
c)
d)
46.
The picture showing the energy conversion
Kinetic → mechanical
is:
a)
b)
c)
d)
47.
The picture showing the energy conversion
Light → chemical
is:
a)
b)
c)
d)
48.
The picture showing the energy conversion
Light → electrical
is:
a)
b)
c)
d)
49.
The picture showing the energy conversion
electrical → heat and light
is:
a)
b)
c)
d)
50.
What is the energy conversion when you plug in a stereo and listen to music?
a)
electrical to mechanical
b)
chemical to heat
c)
electrical to sound
d)
potential to sound
51.
What is the energy conversion when you plug in a charger to charge a battery?
a)
electrical to light
b)
kinetic to potential
c)
thermal to chemical
d)
electrical to chemical
52.
What is the energy conversion when you have a skateboard at the top of the hill then move down?
a)
kinetic to potential
b)
potential to kinetic
c)
potential to thermal
d)
electrical to kinetic
53.
What is the energy conversion when you feel the warmth of the sun?
a)
nuclear to thermal
b)
nuclear to kinetic
c)
potential to nuclear
d)
light to nuclear
54.
What is the energy conversion when you plug in a fan?
a)
potential to kinetic
b)
potential to heat
c)
heat to electrical
d)
electrical to kinetic
55.
What is the energy conversion when you eat food for fuel to go for a run?
a)
chemical to nuclear
b)
kinetic to chemical
c)
chemical to kinetic
d)
potential to chemical
56.
What are the energy conversions when the sun shines on a solar panel that provides energy to a home?
a)
nuclear to heat to electrical
b)
nuclear to light to electrical
c)
nuclear to electrical to light
d)
nuclear to light to potential
57.
10. Which best describes the process of convection?
a)
Convection is the primary way heat travels through rays.
b)
Convection is the primary way heat travels through metals.
c)
Convection is the primary way heat travels through appliances.
d)
Convection is the primary way heat travels through liquids and gasses.
58.
In what way does the Sun warm Earth?
a)
radiation
b)
convection
c)
conduction
d)
condensation
59.
Which is most responsible for the uneven heating of the air in the atmosphere?
a)
radiation
b)
convection
c)
conduction
d)
condensation
60.
Heat moves through the atmosphere as air circulates. What causes the circulation of air?
a)
Air in the atmosphere is heated by the sun and sinks to the ground.
b)
The ground is heated by the sun and then heats the air, causing the air to rise.
c)
Air loses heat to the ground and then rises upward to obtain more energy.
d)
The sun heats the clouds which forces the cooler air to move away and sink.
61.
Kelly was sunburned at the beach, and her mother applied lotion to the burn. Why did this make her sunburn feel better?
a)
The coolness from the lotion was conducted into the burn.
b)
The coolness from the lotion was raidated into the burn.
c)
The heat from the burn was conducted into the lotion.
d)
The heat from the burn was radiated into the lotion.
62.
Which best explains how bacon is fried on a stove burner?
a)
The bacon creates a convection current, the heat rises to the pan, and then rises to the stove burner.
b)
The bacon transfers heat directly to the pan, and the pan transfers heat directly to the stove burner.
c)
The stove burner radiates heat to the pan, and the pan radiates heat to the bacon.
d)
directly to the pan, and the pan directly transfers heat to the bacon.
63.
What conditions are necessary for heat conduction to occur between two objects?
a)
The objects must be surrounded by air or water.
b)
Two objects at different temperatures are touching one another.
c)
Two objects at different temperatures are located close to one another.
d)
One object must emit energy as light and heat and another object absorbs the energy.
64.
What heat transfer happens when you burn your hand by touching a fire?
a)
Radiation
b)
Conduction
c)
Convectio
d)
I don't know!!!!!!!!!!!
65.
Ironing a shirt is an example of...
a)
condensation
b)
conduction
c)
convection
d)
radiation
66.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
67.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
68.
Transfer of thermal energy through "space"
a)
conduction
b)
convection
c)
radiation
69.
The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
70.
Conduction occurs in...
a)
solids
b)
liquids
c)
gases
100 %
