Momentum - Assessment

1.

Multiple Choice

30 sec

1 pt

The momentum of an object depends upon the object's ___________&_____________.

size and shape

mass and speed

mass and veloctiy

mass and energy

2.

Multiple Choice

1 min

1 pt

The equation to calculate momentum is

p=mv

p=1/2mv²

p=mgh

p=mg

3.

Multiple Choice

15 mins

1 pt

A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision. What is the velocity of the second ball after the collision?

5 m/s

2.5 m/s

10 m/s

7.5 m/s

4.

Multiple Choice

30 sec

1 pt

Which object has more momentum?

car driving near school

car driving on freeway

car finding a parking place

car driving in the city

5.

Multiple Choice

30 sec

1 pt

which object has more momentum?

automobile

moving train

snowmobile

plane taking off

6.

Multiple Choice

15 mins

1 pt

The law of conservation of momentum states that the total momentum of all objects interacting with each other will ________________________ no matter of the nature of the forces between the object.

increase

decrease

remain constant

fluctuate

7.

Multiple Choice

15 mins

1 pt

What are the units for momentum

kg*m/s

kg

m/s

none of these

8.

Multiple Choice

15 mins

1 pt

The total momentum before a collision is _________ the total momentum after a collision.

equal to

less than

more than

It depends on the type of collision

9.

Multiple Choice

15 mins

1 pt

What are the units for mass?

kg

m/s

kg*m/s

none of these

10.

Multiple Choice

1 min

1 pt

When the speed of an object is doubled, its momentum

remains unchanged in accord with the conservation of momentum.

doubles

quadruples

decreases

11.

Multiple Choice

30 sec

1 pt

Which has more momentum: a car at a stop light or a bike moving at 15 mph?

car

bike

they are equal

cannot determine using the info provided

12.

Multiple Choice

3 mins

1 pt

A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?

8 m/s

32 m/s

0.125 m/s

18 m/s

13.

Multiple Choice

30 sec

1 pt

In the momentum equation, how do you calculate velocity?

v=d/t

v=pm

v=p/m

v=m/p

14.

Multiple Choice

30 sec

1 pt

How can a tennis ball and a bowling ball have the same momentum?

have the same speed

have different speeds

one is moving backwards

they can't

15.

Multiple Choice

30 sec

1 pt

In the momentum equation, how do you calculate mass?

m=vp

m=pv

m=v/p

m=p/v

16.

Multiple Choice

30 sec

1 pt

A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball.

55 kg*m/s

100 kg*m/s

250 kg*m/s

500 kg*m/s

17.

Multiple Choice

10 sec

1 pt

Momentum is large when mass is large, when ___________ is large, or both are large.

speed

direction

velocity

18.

Multiple Choice

10 sec

1 pt

If an eagle and a bumble bee are both traveling at 10 km/hr, which has the greater momentum?

eagle

bumble bee

both

19.

Multiple Choice

10 sec

1 pt

Which has a greater momentum: a 2-ton roller coaster moving 50 km/hr or a 2.5 ton truck moving at 35 km/hr?

truck

roller coaster

both

20.

Multiple Choice

10 sec

1 pt

Momentum can be shifted between two objects. True or False.

True

False

21.

Multiple Choice

30 sec

1 pt

An object with a mass of 2000 kg at rest has what momentum?

2000 kg m/sec

0 kg m/sec

2000 kg

2000 m/sec

22.

Multiple Choice

30 sec

1 pt

Momentum is given by the formula p = mv. Choose the correct answer below :

p = power , m = mass , v = velocity

p = momentum , m = motion , v = volume

p = power , m = mass , v = volume

p = momentum , m = mass , v = velocity

23.

Multiple Choice

30 sec

1 pt

Which of the following is NOT a unit of momentum?

kg*m/s

N*s

kg*mph

kg*m/s²

24.

Multiple Choice

30 sec

1 pt

What is a PUSH or PULL of an object?

Motion

Force

Friction

Gravity

25.

Multiple Choice

30 sec

1 pt

Why is it harder for the boy in Image B to get down the hill?

Motion

Friction

Work

Displacement

26.

Multiple Choice

2 mins

1 pt

If these boys are pulling with the same amount of force. What will happen?

The boy in blue will win.

They will not move at all.

The boy in red will win.

Both will fall down.

27.

Multiple Choice

30 sec

1 pt

What is the attractive force that exists between all objects that have mass?

Weight

Mass

Gravity

Viscosity

28.

Multiple Choice

30 sec

1 pt

If an object is stationary (not moving) the forces acting upon it are _____________

unbalanced

weak

balanced

Hulk Smash!

29.

Multiple Choice

1 min

1 pt

When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?

The cannon moving forward

The cannonball moving forward

The cannon moving backward

The cannonball moving backward

30.

Multiple Choice

1 min

1 pt

What Newtons law does this picture represent

Newtons 2nd law

Law of gravity

Newtons 1st law

Newtons 5th law

31.

Multiple Choice

30 sec

1 pt

The Law of Conservation of Momentum states:

The total momentum before a collision is equal to the total momentum after a collision.

The total momentum before a collision is greater than the total momentum after a collision.

The total momentum before a collision is less than the total momentum after a collision.

The total momentum before a collision is not related to the total momentum after a collision.

32.

Multiple Choice

30 sec

1 pt

According to the Law of Conservation of Momentum, when two objects collide:

both objects lose momentum.

both objects gain momentum

momentum is neither lost nor gained.

momentum is always lost or gainer.

33.

Multiple Choice

30 sec

1 pt

Which of the following objects would have the most momentum?

A 10 kg ball rolling down the hallway at 2 m/s.

A 5 kg ball rolling down the hallway at 5 m/s.

A 100 kg ball at rest in the corner of the hallway.

A 10 kg ball rolling down the hallway at 1 m/s.

34.

Multiple Choice

30 sec

1 pt

Two soccer balls collide. The first soccer ball hits the second soccer ball which was at rest on the ground. What is true of the momentum?

The total momentum of the isolated system stays the same.

The total momentum of the isolated system decreases.

The total momentum of the isolated system increases.

The total momentum of the isolated system equals zero since the second soccer ball was at rest.

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