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inertia and momentum

Total questions: 25

Worksheet time: 4mins

Name
Class
Date
1.

the tendency of an object to resist a change in its motion

a)

acceleration

b)

inertia

c)

mass

d)

frame of reference

2.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
3.
Because of inertia, a resting object will remain at ________.
a)
rest
b)
a constant speed
c)
school
d)
inertia 
4.
Because of inertia, a moving object will keep ________.
a)
at rest
b)
moving
c)
in one spot
d)
inertia 
5.

Inertia is a force

a)

True

b)

False

6.

Inertia is Newton's _______ Law of Motion.

a)

First

b)

Second

c)

Third

7.

What is the relationship between heavy objects and inertia?

a)

Only heavy objects have inertia.

b)

Heavy objects have more inertia.

c)

Heavy objects have less inertia.

d)

Heavy objects have no inertia.

8.

Inertia tells us that we need ____________ to get an object moving or to make it stop.

a)

a force

b)

gravity

c)

friction

d)

strength

9.

Which phenomenon shows the effect of Inertia?

a)
b)
c)
d)
10.

Which of the objects listed below have the greatest inertia?

a)

A 500 kg object that is not moving.

b)

A 300 kg object that is not moving on the Moon.

c)

A 250 kg object moving at 25 m/s.

d)

A 700 kg object moving at 3 m/s.

11.

While you’re ice-skating with your friends, you push off from one end of the rink and slide forward. Based on Newton’s first law of motion, what is true?

a)

You will lose your balance and fall over before you reach the middle of the ice rink.

b)

You will continue to slide across the ice until a force makes you stop or change direction.

c)

The force of gravity will make you keep your velocity until your friend makes you stop.

d)

The size of your ice skates will determine how quickly or slowly you travel across the ice.

12.
Which of the following is an example of inertia?
a)
Slamming on the breaks in your car and flying forward.
b)
An apple falling off of a tree. 
c)
Running at a cross country event. 
13.

Seat belt is needed for safety purpose in a vehicle. What is the use of the seat belt?

a)

To increase the effect of inertia

b)

To reduce the effect of inertia

c)

To increase the effect of momentum

d)

To decrease the effect of momentum

14.

Which explains why the tablecloth trick works?

a)

The dishes are stuck in place due to air resistance.

b)

The tablecloth is an ilusion.

c)

The dishes have inertia, and therefore stay on the table.

d)

magic

15.
Which of the following has the least amount of momentum?
a)
An ant walking along the ground
b)
An ant at rest
c)
An elephant walking
d)
An elephant running
16.
Momentum depends on an object's mass and its ____________.
a)
Inertia
b)
Velocity
c)
Potential energy
d)
Height
17.
Both mass and velocity are _______________ proportional to momentum.
a)
Directly
b)
Inversely
18.
To change the momentum of an object, a/an _________________ must be applied.
a)
Impulse
b)
Force
19.
Bungee cords are made out of an elastic material in order to _____ the time over which a person coomes to a stop, which _____ the force acting on the person.
a)
Increase; decreases
b)
Increase; increases
c)
Decrease; decreases
d)
Decrease; increases
20.
To maximize the change in momentum of an object, a _____ force should be applied over a _____ time.
a)
Large; long
b)
Large; small
c)
Small; long
d)
Small; short
21.
The impulse acting on an object is always equal to its change in _____.
a)
Momentum
b)
Energy
c)
Position
d)
Velocity
22.
The impulse-momentum relationship is used by engineers to save lives.  Air bags, seat belts, and safer walls (Nascar) depend on the ______ relationship between time to stop and force.
a)
Direct
b)
Inverse
23.
In both elastic and inelastic collisions, momentum ____________________.
a)
is conserved
b)
is lost
c)
is gained
d)
is changed into inertia
24.
The total momentum before a collision is _________ the total momentum after a collision.
a)
equal to 
b)
less than 
c)
more than
d)
It depends on the type of collision
25.
As you are walking along the sidewalk you step on a piece of gum that sticks to your shoe.  This is an example of an _____ collision.
a)
Elastic
b)
Inelastic