WorksheetsWork + Power
Total questions: 22
Worksheet time: 17mins
What is Work?
How quickly an object accelerates
How much effort is applied over a distance
Change in an object's rate of speed
How much time it takes to move object
A kid applies a force of 70 N to a ball over 1 km.
How much work did he do on the ball?
0.7 J
7 J
70 J
70 KJ
300 J
450 J
600 J
900 J
Which of these is a measure of force?
You do 90 joules of work in 30 seconds.
How much power have you generated?
180 watts
90 watts
30 watts
3 watts
You move an 8-newton weight five meters in 4 seconds.
How much power have you generated?
40 watts
10 watts
8 watts
You did work on Meatball when you ...
Lift Meatball
off the floor
Chase Meatball
up the stairs
Sit with Meatball
on your lap
Push Meatball
off your lap
If you did the same work as someone, but in less time
You are more powerful
You are less powerful
You have the same power
5 J
0 J
5 J
0 J
Transfer of energy that makes an object move
work
kinetic
joule
power
Moving an object increases its ______________ energy
work
kinetic
joule
power
Rate of work
work
kinetic
joule
power
Energy stored because of gravity is called:
Gravitational Potential Energy
Kinetic Energy
Mechanical Advantage
Chemical Energy
At which point does the ball has the greatest gravitational potential energy
A
G
D
C
G
A soccer ball is rolling down a hill. At which point is it experiencing the most kinetic energy?
At the top of the hill
Halfway down the hill
At the bottom of the hill
The kinetic energy level is the same the whole time
Levels of kinetic energy are most influenced by:
Mass
Speed
Distance
Time
If you push against an object and it doesn't move, are you doing work?
No
Yes
When the force is perpendicular to the motion,
the work being done is ________
Same as the force applied
90 degrees to the force applied
0
