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Q 1/11
Score 0
What is the unit for kinetic energy (KE)?
45
Joules (J)
meters (m)
Newtons (N)
kilograms (kg)
Q 2/11
Score 0
What is the kinetic energy of a 700 kg roller coaster moving at a velocity of 15 m/s?
120
78,750 kg
78,750 J
5,250 kg
5,250 J
11 questions
Q.
What is the unit for kinetic energy (KE)?
1
45 sec
Q.
What is the kinetic energy of a 700 kg roller coaster moving at a velocity of 15 m/s?
2
120 sec
Q.
What is the gravitational potential energy of the 75 kg rock shown in the picture?
3
120 sec
Q.
A roller coaster is at rest at the top of a 72 m hill and weighs 966 N. The coaster (at this moment) has ________________ (potential or kinetic)energy.
4
45 sec
Q.
A 4-kilogram ball has a kinetic energy of 30 joules. The velocity of the ball is --
5
300 sec
Q.
What is the GPE of a 5 kg crate that has been lifted up a height of 2.5 m?
6
300 sec
Q.
What is the unit for gravitational potential energy (GPE)?
7
45 sec
Q.
A ball is about to be dropped from a height of 15 m. If the gravitational potential energy is 735 J, what is the mass of the ball?
8
300 sec
Q.
What is the gravitational potential energy of a box once it hits the ground?
9
45 sec
Q.
At which point does the ball have the greatest potential energy?
10
45 sec
Q.
The image shows a pendulum. At which point is kinetic energy at a maximum?
