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Inv. 3,4,5,6 review

Total questions: 43

Worksheet time: 37mins

Name
Class
Date
1.
A north pole and a south pole will attract.
a)
True
b)
False
2.

Earth acts like a giant magnet because its center is made up MOSTLY of

a)

Magma

b)

copper

c)

iron

d)

aluminum

3.
True or False: All metals stick to magnets.
a)
True
b)
False
4.
Where is the force of attraction the strongest on a magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
5.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
6.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
7.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
8.

Lightning is an example of _______________ energy.

a)

Electrical

b)

Nuclear

c)

Potential

d)

Chemical

9.

Food is an example of __________ energy.

a)

Kinetic

b)

Thermal

c)

Chemical

d)

Potential

10.

Which has the most potential energy?

a)

A

b)

B

c)

C

d)

D

11.

If a football player wants to become better at tackling by increasing their kinetic energy, how can the player do this?

a)

Increasing their height

b)

Decreasing their speed

c)

Increasing their mass

d)

Increasing their speed

12.

What is moving in electrical energy?

a)

Protons

b)

Neutrons

c)

Electrons

13.
What is happening to the energy of the girl from point A to point B
a)
kinetic changes to potential
b)
potential changes to kinetic
c)
energy is lost
d)
energy is gained
14.
__________ energy is the energy due to an object's position or condition
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
15.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
16.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)

Height and weight

b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
17.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
both
d)
neither
18.
Which point has the greatest kinetic energy?
a)
W
b)
X
c)
Y
d)
Z
19.
The law of conservation of energy means ________________________
a)
Energy CAN be created and destroyed or transformed
b)
Energy can be used up or transformed
c)
Energy CANNOT be created or destroyed, only transformed
d)
Energy cannot be transformed
20.
When does that ball have the greatest potential energy?
a)
A
b)
B
c)
C
d)
D
21.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
22.
When a pendulum swings, at which point is potential energy at its greatest? (assume there is no friction)
a)
1 and 5
b)
2 and 4
c)
3 
d)
4 and 5
23.

Energy that is stored is called...

a)

Kinetic Energy

b)

Potential Energy

c)

Mechanical Energy

d)

Thermal Energy

24.
High temperature is connected to:
a)
Low kinetic energy.
b)
High kinetic energy.
c)
Zero net energy.
d)
Equal kinetic energies.
25.
The energy of moving electrons
a)
A. Energy
b)
B. Energy Conversion
c)
C. Chemical Energy
d)
D. Electrical Energy
26.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
27.

The ability to do work

a)

A. chemical energy

b)

B. Friction

c)

C. electrical energy

d)

D. Energy

28.
Which of the following is a conversion from light energy to chemical energy?
a)
a. turning on a stove to heat dinner
b)
b. turning on a lamp
c)
c. growing an apple tree
d)
d. making toast in a toaster
29.
Any time an energy conversion takes place, some of the original energy is converted to which one of the following?
a)
a. sound energy
b)
b. potential energy
c)
c. light energy
d)
d. thermal energy
30.

When you eat fruits and vegetables, chemical bonds are releasing stored energy, this is...

a)

a. thermal energy

b)

b. sound energy

c)

c. electrical energy

d)

d. chemical energy

31.
Energy stored in the bonds of atoms and molecules is __________ potential energy.
a)
Chemical  
b)
Elastic
c)
Nuclear
d)
Gravitational
32.
Energy that is stored in the nucleus of an atom is called _________ energy.
a)
Chemical
b)
Nuclear
c)
Gravitational
d)
Elastic
33.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
34.

Sound does not travel in space because

a)

space has planets

b)

space is the finite

c)

space is too far away

d)

space has no matter

35.
the tendency of an object to resist a change in its motion
a)
acceleration
b)
inertia
c)
mass
d)
frame of reference
36.

Objects with greater _________ also have greater inertia.

a)

speed

b)

mass

c)

force

d)

friction

37.
Because of inertia, a resting object will remain at ________.
a)
rest
b)
a constant speed
c)
school
d)
inertia 
38.
a force that opposes motion between any surfaces that are touching
a)
velocity
b)
friction
c)
inertia
d)
position
39.

"For every action, there is an equal and opposite reaction" represents

a)

Newton's 1st law

b)

Newton's 2nd law

c)

Newton's 3rd law

d)

Law of conservation of momentum

40.

F=ma represents

a)

Newton's 1st law

b)

Newton's 2nd law

c)

Newton's 3rd law

d)

Law of conservation of momentum

41.

A unbalanced force means that an object is

a)

zero net force

b)

changing its motion

c)

sitting still

d)

object at rest

42.

A 10 kg, 15 kg, and 20 kg rock are rolling down a hill. Which rock will require the most force to stop?

a)

10 kg rock

b)

15 kg rock

c)

20 kg rock

d)

All 3 rocks will require the same force

43.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles

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