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Noncontact Forces

Total questions: 44

Worksheet time: 43mins

Name
Class
Date
1.

Any push or pull is called...

a)

gravity.

b)

magnetism.

c)

a force.

d)

acceleration.

2.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
Mass and Distance 
b)
Mass and Matter
c)
Distance and Weight 
d)
Weight and Mass
3.
The force of gravity acting on an object is the object's ______.
a)
Mass
b)
Matter
c)
Weight 
d)
Terminal velocity 
4.
Which best describes the force of gravity?
a)
a pulling force
b)
a pushing force
c)
a change in mass
d)
a change in speed
5.
What is the SI unit used to measure force? 
a)
Pounds 
b)
Grams 
c)
Newtons 
d)
kg/ m2
6.

A non-contact force is between

a)

two objects that aren't touching

b)

two objects that are touching

c)

the ground and wheels

d)

you and me

7.

A contact force is from

a)

objects physically touching

b)

far apart objects

c)

not touching object

d)

always a pull

8.

The force between the phone and the mount is a

a)

contact force

b)

non-contact force

9.

Gravity is a

a)

Contact Force

b)

Myth

c)

Non-contact Force

10.

What keeps the planets in orbit around the sun?

a)

gravity

b)

friction

c)

density

d)

distance

11.

A magnet cannot not move which of the following objects?

a)

a paper clip

b)

a nail

c)

a toothpick

d)

a staple

12.

Why does a compass needle point north?

a)

Because it is being attracted to the Magnetic South Pole

b)

Because north is up

c)

Because it is being attracted to the Magnetic North Pole

d)

Because north is down

13.
The picture is an example of an:
a)
Electric circuit
b)
Electromagnet
c)
Electric nail
d)
Electric power cell
14.
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
15.

The entire region surrounding a magnet is known as the:

a)

Magnetic Domain

b)

Lodestone

c)

A Compass

d)

Magnetic Field

16.

Which metal can be attracted to magnets?

a)

Copper

b)

Aluminum

c)

Iron

d)

Gold

17.
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
18.
You know this substance is magnetized because
a)
all the domains have right angles
b)
the arrows are drawn in red
c)
the domains are aligned
d)
the domains are random
19.

All metals are attracted to magnets

a)

True

b)

False

20.
How is Earth's magnetic field similar to that of a magnet?
a)
It is hundreds of miles long
b)
It has north and south poles
c)
It is made in Earth's core
d)
It is shaped like a horseshoe
21.
If two magnets come together what is it called?
a)
Repel
b)
Force
c)
Attract
d)
None of the Above
22.
If 2 magnets push away from each other what is it called?
a)
Attract
b)
Iron
c)
Repel
d)
None of the above
23.
Can the North and North poles attract?
a)
Yes
b)
No
24.
To make this electromagnet stronger you could
a)
use less wire
b)
have fewer wire coils around the nail
c)
have more wire coils around the nail
d)
use a plastic core
25.
What is our best evidence that Earth has a magnetic field?
a)
All things fall toward Earth's center
b)
A compass needle lines up with it
c)
Winds blow from east to west
d)
Earth's oceans all have currents
26.
A(n) __________ is a device that has a magnetized needle that can spin freely.
a)
Compass
b)
Magnetic Field
27.
Magnets cannot be made from
a)
cobalt
b)
nickel
c)
iron and steel
d)
wood
28.

Which poles attract each other?

a)

north and north

b)

south and south

c)

north and south

29.

What items will a magnet attract?

a)

Beach ball, glass jar

b)

nails, paper clips

c)

book, lunch box

d)

golf ball, glue

30.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
31.
True or False? Neutrons have a negative charge
a)
True
b)
False
32.
The nucleus contains _____
a)
only protons
b)
protons and neutrons
c)
protons and electrons
d)
electrons and neutrons
33.

Atoms are the _________ of all matter.

a)

Indivisible

b)

prettiest

c)

Building block

d)

Nucleus

34.

Electrons have a _________ charge.

a)

Negative

b)

Positive

c)

Neutral

35.
A force is a ____________________
a)
push or pull
b)
motion
c)
speed
d)
net force
36.
If you traveled to Jupiter, what would change?
a)
Your weight and mass
b)
your weight
c)
your mass
d)
your height
37.
The law of universal gravitation is credited to whom? 
a)
Einstein 
b)
Galileo
c)
Darwin
d)
Newton 
38.
Two factors effecting the magnitude of force of gravity between 2 objects are...
a)
weight and mass 
b)
distance and weight 
c)
mass and matter 
d)
mass and distance 
39.
Gravity attracts all objects towards one another. 
a)
True
b)
False 
40.
Look at the picture.  Is the force of gravity on the boy a push or a pull? 
a)
Pull
b)
Push
41.
As distance between objects increases the pull of gravity...
a)
increases 
b)
decreases 
c)
Stays the same 
42.
The amount of matter in an object.
a)
force 
b)
mass
c)
weight 
d)
pressure 
43.
A person would weigh less on the moon than on the Earth because...
a)
the moon has less mass, and therefore less gravity
b)
the moon has more mass, and therefore less gravity
c)
the moon has less mass, and therefore more gravity
d)
the moon has more mass, and therefor more gravity
44.
A person weights _______ on the moon than they do on Earth.
a)
the same
b)
more
c)
less

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