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Fundamental Forces

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.
The four fundamental forces of nature are: 
a)
Electromagnetism, Gravity, Strong Nuclear, Weak Nuclear
b)
Gravity, Strong Nuclear, Weak Nuclear, Medium Nuclear
c)
Normal Force, Force due to gravity, Magnetism, Nuclear 
d)
Nuclear, Electricity, Gravity, Atomic 
2.
Rank the four fundamental forces of nature in order from weakest to strongest:  
a)
Electromagnetism, Gravity, Strong Nuclear, Weak Nuclear
b)
Weak Nuclear, Gravity, Electromagnetism, Strong Nuclear
c)
Gravity, Weak Nuclear,  Electromagnetism, Strong Nuclear
d)
Weak Nuclear, Electromagnetism, Gravity, Strong Nuclear
3.
Gravity is due to:
a)
the pull between Earth and the moon.
b)
the pull between the Sun and Earth. 
c)
the pull between any objects with mass. 
d)
the pull between atomic nuclei. 
4.
The weakest of the four fundamental forces is: 
a)
Gravity 
b)
Electromagnetism
c)
Strong Nuclear 
d)
Weak Nuclear 
5.
The strongest of the four fundamental forces is: 
a)
Gravity 
b)
Electromagnetism
c)
Strong Nuclear 
d)
Weak Nuclear 
6.
________ can be either a force of attraction or repulsion while ____________ is only a force of attraction.
a)
Gravity; Electromagnetism 
b)
 Electromagnetism; Gravity
c)
Gravity; Strong nuclear force 
d)
Magnetism; Electricity 
7.
____________ and ____________ are short range forces. 
a)
Gravity, Electromagnetism
b)
Strong Nuclear, Weak Nuclear
c)
 Electromagnetism, Strong Nuclear
d)
Gravity, Weak Nuclear
8.
Gravity has a range that is ____________. 
a)
Short
b)
Long 
c)
Infinite
d)
Variable
9.
When an atom undergoes radioactive decay,  the energy that is released is due to: 
a)
Gravity 
b)
Electromagnetism 
c)
Strong Nuclear 
d)
Weak Nuclear 
10.
An apple falling from a tree is an example of the force of ____________. 
a)
Gravity 
b)
Electromagnetism 
c)
Strong Nuclear 
d)
Weak Nuclear 
11.
An electron moving in wire is an example of  ____________. 
a)
Gravity 
b)
Electromagnetism 
c)
Strong Nuclear 
d)
Weak Nuclear 
12.
_____________ is the force that binds protons together in the nucleus of an atom. 
a)
Gravity 
b)
Electromagnetism 
c)
Strong Nuclear 
d)
Weak Nuclear 
13.
A force that acts where two objects touch
a)
Contact Force
b)
Non-contact Force
c)
Balanced Force
d)
Unbalanced Force
14.
Which is a factor that affects the strength of gravitational, magnetic, and electrostatic force fields?
a)
Mass
b)
Volume
c)
Distance
d)
Density
15.
Distance and mass are two factors that affect
a)
Gravitational Force Fields
b)
Magnetic Force Fields
c)
Electric Force Fields
d)
Electrostatic Force Fields
16.

What force is the weakest force in the universe?

a)

strong nuclear

b)

weak nuclear

c)

electromagnetic

d)

gravity

17.

What kind of particles does gravitational force effect?

a)

All matter

b)

only humans

c)

only apples

d)

only the moon

18.

Electromagnetic force has a range that is _________.

a)

Limited

b)

Infinite

c)

Constantly changing

d)

Small

19.

Which two fundamental forces obey an inverse square law?

a)

strong and gravi

b)

gravity and electromagnetic

c)

electromagnetic and weak

d)

strong and weak

20.

The girl's hair and the comb are attracting  one another.  The hair and the comb have

a)

Neutral charges

b)

opposite charges

c)

like charges

d)

no charges

21.

A person would weigh more on Jupiter than on the Earth because . . .

a)

Jupiter has more mass, and therefore less gravity

b)

Jupiter has less mass and therefore less gravity

c)

Jupiter has more mass, and therefore more gravity

d)

Jupiter has less mass, and therefore more gravity

22.

Which force holds protons and neutrons together in the atom nucleus?

a)

electric force

b)

gravity

c)

strong nuclear force

d)

weak nuclear force

23.

In a radioactive nucleus, the electric force _____ the strong force.

a)

balances

b)

overpowers

c)

is overpowered by

d)

adds to

24.

When will the gravity between two objects be the LEAST?

a)

when the masses of both objects is small and the objects are close together

b)

when the masses of both objects is small and the objects are far apart

c)

when the masses of both objects is large and the objects are close together

d)

when the masses of both objects is large and the objects are far apart

25.

_____ is the only fundamental force that attracts and repels.

a)

Gravitational

b)

Strong Nuclear

c)

Electromagnetic

d)

Weak Nuclear

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