A
B
C
D
E
100
Which of the following has the most potential energy? A person in an airport? A person in an airplane flying slowly at 5 m/s? A person in an airplane driving quickly at 100 m/s?
The person in an airplane flying slowly. More height. Velocity does not change the potential energy.
100
Kinetic and Potential energy both relate to
The motion of an object.
100
What is potential energy?
The stored energy of an object due to its position or condition.
100
What is kinetic energy?
The energy an object has due to its motion
100
What is an example of kinetic energy at work?
Various Answers are correct. Must include something with mass which is in motion. i.e. a flying bird or a motorcycle.
200
What does kinetic energy depend on and what is the formula for kinetic energy?
mass velocity KE=1/2 (mass) (velocity)^2
200
Which of the following has the most kinetic energy? A person in an airport? A person in an airplane flying slowly at 5 m/s? A person in an airplane driving quickly at 100 m/s?
The airplane driving quickly. Most velocity. Kinetic Energy is not concerned with height.
200
Which of the following has the least kinetic energy? A person standing in an airport? A person in an airplane flying slowly at 5 m/s? A person in an airplane driving quickly at 100 m/s?
Person in the airport. Least velocity.
200
Can you create or destroy energy and why.
NO - Conservation of Energy
300
If potential energy increases then kinetic energy
decreases.
300
Find the gravitational potential energy of a 25 kg cat stuck in a tree. The cat is sitting on a branch 11m up in the air.
2695 J
300
Find the kinetic energy of a man driving an automatic lawnmower with a combined mass of 187.0 kg traveling at a speed of 2.5 m/s?
584.4J
300
Find the total mechanical energy of a 9kg angry bird who is 20m up above the earth and traveling at 7m/s.
1984.5J
300
A bowling ball is sitting on a 18m high shelf at bowl-o-rama. It has 4857 J of potential energy. What is the mass of the bowling ball?
27.5 kg
400
David shoots Goliath with a sling shot. Right before it hits Goliath the 2.5kg stone is moving with a kinetic energy of 124 J. What is the velocity of the stone at this time?
What is 9.96 m/s
400
Taylor Swift is sitting on a water dunking contraption as students through baseballs to knock her down. She has a mass of 82 kg and a total mechanical energy of 563 J. How high up is she?
0.7m
400
A truck weighing 1455 kg has 2300 J of kinetic energy. What is the speed at which it is travelling?
1.78 m/s
400
A diamond thief is hanging of the side of a building before he enters to steal a major diamond collection. He is 95 meters above the ground and has a mass of 65 kg. What is his TME?
60,515J TME is all potential energy because the thief is not moving.
400
If we know the total energy in a system is 300J and we know that the PE is 144 J. What is the kinetic energy?
156 J
500
SEE THE DIAGRAM A What is the PE at A?
38,220 J
500
SEE DIAGRAM A What is the TME at B?
38, 777 J
500
SEE DIAGRAM A What is the height at point b?
0.599 m
500
SEE DIAGRAM A What is the KE at point C?
26,724 J
500
SEE DIAGRAM A What is the height at point C?
23.65 m
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