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Unit 3 Forces and Energy

Total questions: 92

Worksheet time: 1hrs 26mins

Name
Class
Date
1.
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 
2.
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 
3.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
same
4.
Which is an example of potential energy?
a)
a roller coaster speeding down a hill
b)
the pulled back string on an archers's bow
c)
releasing the strings on a guitar
d)
an electric current lighting a light bulb
5.

What energy conversion happens when a roller coaster car moves DOWN a hill?

a)

Kinetic energy is converted to potential energy.

b)

Potential energy is converted to kinetic energy.

c)

Friction energy slows it down.

d)

Thermal energy is converted to solar energy.

6.

At which letter is potential energy the highest? (6.8A)

a)

b

b)

c

c)

a

d)

d

7.

At which letter is kinetic energy the highest? (6.8A)

a)

a

b)

b

c)

c

d)

d

8.
Force is measured in....
a)
Galileos 
b)
Newtons
c)
Di Vincis
d)
Einsteins 
9.

Potential energy is stored energy.

Which of these is a good example of stored energy?

a)

The glow from a snapped glowstick. (Light energy)

b)

A lit match. (Thermal energy)

c)

A battery. (Chemical energy)

10.

The ability to do work or cause change is called ________.

a)

velocity

b)

energy

c)

transfer

d)

friction

11.

Energy is measured in units called ______.

a)

joules

b)

pounds

c)

meters

d)

horsepower

12.

An example of something that stores chemical energy is ____________.

a)

lightening

b)

a microwave

c)

a match

d)

light

13.

What type of energy transformation is taking place when natural gas is used to heat water?

a)

chemical energy into thermal energy

b)

thermal energy into mechanical energy

c)

mechanical energy into electromagnetic energy

d)

electromagnetic energy into chemical energy

14.

Potential energy that depends on height is called _____________.

a)

kinetic energy.

b)

gravitational potential energy.

c)

elastic potential energy.

d)

mechanical energy.

15.

As water runs over a waterfall, its potential energy is converted into ____________________ energy.

a)

nuclear

b)

electromagnetic

c)

kinetic

d)

chemical

16.

At which point on the roller coaster does the rider have the most potential energy?

a)

Point Z

b)

Point Y

c)

Point X

d)

Point W

17.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
18.

A unit of force is

a)

Kilograms

b)

Newtons

c)

Litres

d)

Joules

19.

What forces impacted human which do parachuting?

a)

Mass, Gravity, Air resistance

b)

Mass, Friction

c)

Push, gravity, air resistance

d)

Gravity

20.
If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?
a)
18 g
b)
4 g
c)
0 g 
d)
32 g 
21.
If an object mass =30 Kg on the Earth, what would be it's weight on Earth?
a)
30 N
b)
300 kg
c)
3000N
d)
300 N
22.
If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
23.

What is missing

a)

g

b)

D

c)

L

d)

n

24.

The force that causes objects with mass to attract one another.

a)

Weight

b)

Gravity

c)

Mass

d)

Magnetism

25.

Why do planets orbit the Sun?

a)

The Sun is the only celestial object that has a gravitational pull.

b)

The Sun’s chemical composition makes it attract planets.

c)

Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

d)

The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

26.

Which of the following statements about a skier skiing down a steep slope is true?

a)

His kinetic energy decreases and his potential energy increases

b)

His potential energy decreases and his kinetic energy increases

c)

His chemical energy increases

d)

Both his potential and kinetic energy increases

27.

Food, fuels and batteries have energy in this energy store

a)

Chemical

b)

Thermal

c)

Gravitational Potential

d)

Elastic

28.

A ____ converts chemical energy into kinetic energy?

a)
b)
c)
d)
29.
The Theory of the Conservation of Energy states -
a)
Energy can be created, just not destroyed. It changes its form from one type to another.
b)
Energy can never be created nor destroyed. It can only change its form from one type to another.
c)
The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
d)
Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.
30.

Which is the best example of something that has kinetic energy?

a)

a basketball rolling across a court

b)

a car parked on a steep hill

c)

a picture hanging on the wall

d)

a piece of wood before it's burned

31.
Which kind of energy change occurs when a candle is burning?
a)
Chemical to light.
b)
Light to electrical.
c)
Solar to heat.
d)
Chemical to electrical.
32.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
33.

Which of the following devices transforms electrical energy into kinetic energy?

a)
An e-reader
b)
a fan
c)
a manual pencil sharpener
d)
ipod
34.

Mass is measured in grams and kilograms.

a)

True

b)

False

35.

Weight is the same as mass.

a)

True

b)

False

36.

Gravitational forces change on other planets.

a)

True

b)

False

37.

your weigh less on the moon.

a)

True

b)

False

38.

Your mass changes in space.

a)

True

b)

False

39.
About how much liquid is in this beaker? 
a)
100 mL
b)
40 mL
c)
50 ML
d)
60 ML
40.

A cloud of dust and gas in space is called . . .

a)

nebula

b)

supernova

c)

accretion disc

d)

bombardment

41.

What are the steps of solar system formation?

a)

nebula -> protoplanetary disk -> protostar-> sun and planets

b)

protoplanetary disk --> nebula -> sun and planets ->protostar

42.

Which is the largest planet in our Solar System?

a)

Saturn

b)

Neptune

c)

Earth

d)

Jupiter

43.
As mass increases, gravity ________________.
a)
Increases 
b)
Decreases 
c)
Stays the same 
44.

Why do the planets and other celestial objects in our solar system revolve around the Sun?

a)

The Sun has the greatest mass of any object in the solar system and therefore the greatest gravity

b)

The sun is the center of the universe

c)

The sun is the brightest thing in space and everything is attracted to it.

d)

The Sun has the greatest weight so everything pushes towards it

45.
What causes tides?
a)
gravity
b)
wind
c)
spring
d)
neap
46.
The difference in levels of ocean water at high and low tides is the _________________.
a)
low tide
b)
tidal range
c)
high tide
d)
slack water
47.
Which body has the greater effect on Earth's tides?
a)
Sun
b)
Saturn
c)
Moon 
d)
Venus
48.
What type of tide will occur at 9:30 a.m.?
a)
low 
b)
high 
c)
none
d)
high and low
49.
Why does the moon's gravitational pull have more of effect on tides than the sun's gravitational pull?
a)
they are the same
b)
the moon is larger than the sun
c)
tides are not caused by the moon
d)
the moon is closer to the Earth than the sun
50.

Why does a spring tide create much higher tides than normal tidal ranges?

a)

Because the moon and sun are combining their gravitational strength

b)

Because the moon is in its spring position, causing it to create more force

c)

Because it happens during springtime when the water is the lightest

d)

Because this is when the moon grows in size and goes super saiyan

51.

_______are daily changes in ocean water.

a)

Waters

b)

Tides

c)

Colors

d)

Earths

52.

Tides are caused by the difference in the gravitational force of the ________ and ________ across the ________.

a)

earth, sun, moon

b)

sun, mars, jupiter

c)

sun, moon, earth

d)

tide, water, sun

53.

The tidal force exerted by the ______ is stronger that the tidal force exerted by the _______.

a)

earth, ocean

b)

sun, moon

c)

moon, stars

d)

moon, sun

54.

The moon is mainly responsible for the tides on Earth because it is _________ _________.

a)

much closer

b)

far away

c)

behind the sun

55.

The bulges that occur in the Earth's oceans are called ______ _______.

a)

low waters

b)

low tides

c)

high tides

d)

big dips

56.

____ ____ occur in the spaces between the high tides.

a)

High tides

b)

Medium tides

c)

Low tides

d)

Super tides

57.

As the _____ revolves around the Earth and Earth rotates, the tidal bulge moves around the Earth.

a)

sun

b)

ocean

c)

Earth

d)

moon

58.

The tidal bulge follows the movement of the _____.

a)

moon

b)

sun

c)

Earth

d)

ocean

59.

What is a high tide?

a)

Sea pulled TOWARD the moon where Earth is CLOSEST to the moon

b)

Sea pulled AWAY from the moon where Earth is FARTHEST to the moon

c)

Sea pulled AWAY from the moon where Earth is CLOSEST to the moon

60.
How many high tides does a place have each day?
a)
3
b)
4
c)
5
d)
2
61.
This picture shows an area experiencing....
a)
low tide
b)
high tide
62.

Energy ...

a)

is the ability to do work

b)

cannot be created

c)

cannot be destroyed

d)

can only changed from one form to another

63.

Potential energy is the energy that is stored in an object. one of the example is

a)

a kid slides down a slides in the pool

b)

when someone stretch a bow before releasing the arrow

c)

someone scream when they watch horror movie

d)

nuclear fusion in nuclear power plant

64.

which is the example of electrical energy

a)

lightning logo on PLN

b)

turn on the lamp in a room

c)

a scorpion stings you hand

d)

'bzz' sound of a bee

65.
A student uses a set of headphones to listen to music. Which of these objects uses the same source of energy as the headphones?
a)
A flute using wind energy
b)
A piano using mechanical energy
c)
A keyboard using electrical energy
d)
A teapot using thermal energy
66.
Sound energy is present when...
a)
an object vibrates
b)
energy is created
c)
energy is destroyed
67.
__________ energy is released from a substance when transformed into a new substance.
a)
chemical
b)
radiant
c)
mechanical 
d)
heat
68.
Which type of energy does the battery produce?
a)
sound
b)
light
c)
mechanical
d)
electrical
69.
A student connected some wire to a battery and a small bulb to make a simple circuit. Energy from the battery is changed into electricity. What type of energy is stored in the battery?
a)
chemical
b)
nuclear
c)
heat
d)
light
70.
What most likely caused the water on the table to evaporate?
a)
heat
b)
wind
c)
gravity
d)
light
71.
What type of energy is used to cook food in an oven?
a)
heat
b)
solar
c)
nuclear
d)
mechanical
72.
The glow sticks produce light for a short amount of time. The light from the glow stick is ____________.
a)
heat energy
b)
gravity
c)
magnetism
d)
chemical energy
73.

__________ energy is possessed by an object due to its position.

a)

chemical

b)

radiant

c)

potential

d)

heat

74.

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

a)

thermal to electrical

b)

mechanical to thermal

c)

electrical to thermal

d)

electrical to sound

75.

What type of energy is electrons flowing through a wire?

a)

Electrical energy

b)

Chemical energy

c)

Kinetic energy

d)

Mechanical energy

76.

What type of energy is stored in batteries or food?

a)

Potential energy

b)

Thermal energy

c)

Chemical energy

d)

Mechanical energy

77.

What is an example of kinetic energy?

a)

An apple in a tree

b)

A bouncy ball on the table

c)

A car driving on the highway

d)

A stretched out rubber band

78.

Energy cannot be created or destroyed.

a)

True

b)

False

79.

What transformation occurs in a toaster?

a)

Electrical to light

b)

Electrical to thermal

c)

Thermal to mechanical

d)

Solar to electrical

80.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
81.

Which of the following is an example 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
82.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
83.

What sort of energy transformation is this?

a)

Chemical to Thermal

b)

Thermal to chemical

c)

Kinetic to potential

d)

Open to closed

84.

What is the wasted energy?

a)

electrical

b)

chemical

c)

heat

85.

To increase the EFFICIENCY of energy use, we could...

a)

Turn off lights when not in use

b)

Keep the car running as you go into the store

c)

Water the plants in a drought

86.

What is the wasted energy?

a)

electrical

b)

heat

c)

sound

87.

What is “useful output” energy?

a)

Energy that is used by the appliance

b)

Useful energy that is put into the system

c)

Energy that is produced that we cannot use

d)

Energy that is produced that we can use to do work

88.

What does it mean if a system is “energy efficient”?

a)

It has less wasted output energy

b)

It has less useful output energy

c)

It has more input energy than output energy

d)

Energy is used quickly

89.

What is “wasted output” energy?

a)

Energy that is used by the appliance

b)

Useful energy that is put into the system

c)

Energy that is produced that we can use to do work

d)

Energy that is produced that we cannot use

90.

The wasted energy in this diagram:

a)

is the bottom arrow.

b)

is the green arrow.

c)

is made of three types of energy.

d)

is the longest arrow.

91.

This car needs 8600J of energy to power it. If 5000J is changed into useful energy, how much energy is wasted?

a)

13600J

b)

3600J

c)

5000J

d)

8600J

92.

What is energy dissipation?

a)

The creation of energy

b)

The transformation of energy into a useful form

c)

The process of energy being spread out and lost, usually as heat

d)

The storage of energy for later use

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