Go through the following notes before answering this practice: https://app.peardeck.com/student/txikofoxl
Energy Unit - J
Speed unit - m/s
mass unit - kg
height unit - m
weight unit - N
g = 9.8 m/s2
Go through the following notes before answering this practice: https://app.peardeck.com/student/txikofoxl
Question 1
1.
As a ball is thrown up into the air the Kinetic Energy ________ and the Gravitational Potential Energy _____
Question 2
2.
How much does the KE change if mass doubles
Question 3
3.
How much does the KE change if velocity doubles
Question 4
4.
How much does the KE change if height is doubled
Question 5
5.
How much does the GPE change if height is doubled
Question 6
6.
A jogger with a mass of 60 kg is moving at 2 m/s. What is the jogger's kinetic energy?
Question 7
7.
A ball with a mass of 2 kg is moving at a speed of 3 m/s. What is the ball's heat that is generated?
Question 8
8.
An object has a mass of 2 kg and a kinetic energy of 25 J. What is the object's speed?
Question 9
9.
What is the GPE of a book that has a mass of 1kg that is sitting on a shelf that is 2 m above the ground?
Question 10
10.
How high above the ground is a ball with a mass of 2 kg that has a GPE of 70 J?
Question 11
11.
A rock climber is 200 m above the ground and has a GPE of 10,000 J. What is the climber's mass?
Question 12
12.
A high jumper has a mass of 85.0 kg and a gravitational potential energy of 1970J. How high does he jump?
Question 13
13.
What is the gravitational potential energy of a 73 kg tourist on a tower that is 323 m above the ground?
Question 14
14.
An automobile to be transported by ship is raised 7.3 m above the dock. If its gravitational potential energy is 66,375 J, what is the car’s mass?
Question 15
15.
A sea turtle has a mass of 860 kg. If the gravitational potential energy of the turtle is 20,500 J as it is being lifted onto a ship, how high above the water is the turtle?
Question 16
16.
A 1750 kg weather satellite has a gravitational potential energy of 169,311,000J. How high above the earth’s surface is the satellite?
Question 17
17.
The world record for pole vaulting is 6.15 m. If the vaulter’s gravitational potential energy is 4942 J, what is his mass?
Question 18
18.
If a bird lands on top of a tower and has a gravitational potential energy of 2033 J, what is the bird’s weight? The peak of the tower is 629 m above the ground. (Hint: Weight is measured in Newtons)