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WorksheetsEnergy Review Penner 1
Total questions: 15
Worksheet time: 23mins
A rock is dropped from the edge of a cliff, where it starts with 80 J of potential energy. 30 meters down, it now has 40 J of kinetic energy. How high is the cliff?
20 m
40 m
60 m
80 m
100 m
A box is pushed from rest across a frictionless surface with a force that changes with distance, as shown in the graphs. Which graph represents the situation in which the box will be traveling the fastest?
A
B
C
D
A basketball is thrown into a basket as shown in the diagram. Which graph best represents the ball's kinetic energy over time?
How much work must be done to stop an 1800 kg vehicle traveling at 30 m/s?
18 000 J
54 000 J
530 000 J
810 000 J
A 75 kg person climbs a 4.5 m high set of stairs in 5.0 s. What is the minimum amount of power generated?
68 W
660 W
1700 W
3300 W
Angel (70 kg) and Britney (60 kg) both start from rest and skate down a hill as shown. Which one is going faster at the bottom of the hill (assume no friction or air resistance).
Angel
Britney
Both have the same speed
Can't tell without knowing the slope angle.
Angel (70 kg) and Britney (60 kg) both start from rest and skate down a hill as shown. Which one generates more power getting to the bottom of the hill? (assume no friction or air resistance).
Angel
Britney
Both have the same power
Can't tell without knowing the slope angle.
Which car has the most work done to it?
A
B
C
D
The velocity of an object over time is plotted on the graph. In which phase is NO work being done? Check all that apply.
A
B
C
D
A rollercoaster rolls from rest at point A over an alligator pit for extra excitement. The maximum height achieved by the coaster is...
Higher than at point A
The same as point A
Lower than point A
Dependent on how many riders get eaten
A 40 N box attached to a 150 N/m spring is pulled 20 cm to the right by a 60 N force as shown. The amount of energy stored in the spring is:
30 J
12 J
8 J
3 J
A 40 N box attached to a 150 N/m spring is pulled 20 cm to the right by a 60 N force as shown. The amount of kinetic energy the box has afterwards is:
12 J
9 J
8 J
3 J
A 50 kg person bungee jumps using a 500 N/m spring. The spring stretches 6.26 m at its greatest. How far did the person fall?
20 m
30 m
10 m
15 m
Assuming no friction, how fast will the coaster be going at point B?
14 m/s
14.1 m/s
20 m/s
22 m/s
What is the maximum height at point D?
8 m
10 m
10.2 m
12 m
