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Gravity and Momentum

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

As distance between two objects increase the pull of gravity

a)

Increases

b)

Decreases

c)

Stays the same

2.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
terminal velocity 
3.

What two things determine the gravity of an object?

a)

mass & weight

b)

mass & distance

c)

density & mass

d)

volume & distance

4.

When will the forces of gravity between two objects be the GREATEST?

a)

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

b)

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

c)

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

d)

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

5.

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

6.

Which statement about gravity is true?

a)

gravity causes objects to pull towards one another

b)

gravity causes objects to push away from each other

c)

gravity only takes place between planets

d)

the moon doesn't have any gravity

7.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
8.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
9.

Which of the following has the MOST momentum?

a)

rolling ping-pong ball

b)

rolling bowling ball

c)

rolling soccer ball

d)

rolling basketball

10.

Which object has more momentum?

a)

Baseball in the pitchers hand

b)

baseball, lost, in a messy room

c)

baseball in flight

d)

baseball in a catchers mitt

11.

If an object has a momentum of 40 kgm/s and a mass of 60 kg, what is it's velocity?

a)

2400 m/s

b)

1.5 m/s

c)

240 m/s

d)

.67 m/s

12.
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
13.

What is happening to the ice skater?

a)

Decreased Angular velocity, decreased rotational inertia

b)

Decreased Angular velocity, increased rotational inertia

c)

Increased Angular velocity, increased rotational inertia

d)

Increased Angular velocity, decreased rotational inertia

14.

What happens to her moment of inertia when a figure skater brings in her arms? (angular momentum= moment of inertia X angular velocity)

a)

Increase her moment of inertia

b)

Decrease her moment of inertia

c)

has no effect

15.

What happens to her angular velocity when a figure skater brings in her arms? (angular momentum= moment of inertia X angular velocity)

a)

Increases her angular velocity

b)

Decreases her angular velocity

c)

Has no effect