WorksheetsMomentum, Work, and Power
Total questions: 24
Worksheet time: 14mins
A constant force of 4.5 N acts on a 7.2-kg object for 10.0 s. What is the change in the object's momentum?
45 kg m/s
72 kg m/s
32.4 kg m/s
0.45 kg m/s
A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.
-2,5
45
10
-18
Which takes more force to catch, a bowling ball or a ping pong ball?
bowling ball because it has more momentum
bowling ball because it has less momentum
both require the same amount of force when catching
ping pong ball because it has more momentum
How can a tennis ball and a bowling ball have the same momentum?
one is moving backwards
have the same speed
they can't
have different speeds
An insect applies 1.5 N of force to a windshield of a moving car. How much force does the windshield apply to the insect?
Not enough information
0.5 N
1.5 N
15,000 N
Momentum is represented with which letter?
b
m
v
p
The change in momentum is...
Power
Energy
Impulse
Force
A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?
18 m
4 m
10 m
6 m
4. The ability to do work is called________.
force
machine
energy
work
It is the rate of doing work
Energy
Power
Force
Acceleration
Which is a unit for Power?
Joules
Watt
Brainpower
All of these are correct
You use 950 J of energy to push a sofa. If it took you 5 sec to move the sofa, what was your power?
190 J
4750 J
4750 W
190 W
