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34 questions
What is the formula for Gravitational Potential Energy?
PE = mgh
KE = 1/2mv2
W = Fd
P = W/t
What is the formula for Kinetic Energy?
PE = mgh
KE = 1/2mv2
W = Fd
P = W/t
What is the KE of a football which has a mass of 0.8 kg and is kicked at a velocity of 10m/s?
80 J
3.2 J
160 J
40 J
What is the kinetic energy of a zorb and human with a total mass of 90Kg rolling at 10m/s?
3,700J
900J
4,500J
6,500J
What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s?
676 J
3.25 J
17J
338 J
An explosion of gas from a Hawaiian volcano blows a rock into the sky. The rock has 2000J of kinetic energy. What was its mass if the rock had a velocity of 20m/s?
200Kg
20,000Kg
10Kg
200Kg
You serve a volley ball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30m/s. How much kinetic energy does the ball have?
1890 J
3780 J
945 J
31.5 J
A golf pro swings his driver which has a mass of 0.75Kg at a velocity of 60 m/s. Calculate the kinetic energy of the club.
2700 J
16.9 J
1350 J
45 J
A rabbit with a mass of 3kg walks at a speed of 0.5m/s. Calculate its kinetic energy.
0.5 J
0.75 J
0.255 J
0.375 J
An explosion of gas from a Hawaiian volcano blows a rock into the sky. The rock reaches 100 meters in height. It has a mass of 5 kg. How much potential energy does the rock have before it begins falling back to earth?
500J
50J
4,905 J
49.05J
An aircraft is taking a group of skydivers up into the air. Evan is dressed in his parachuting outfit, which brings his mass to a total of 90.0 kg. The aircraft takes the group to a height of 5000m before the jump. How much GPE does Evan have before jumping?
4,410,000 J
450,000 J
55.56 J
0.018 J
A crate with a mass of 15.3 kg is pulled 9.2 m up in order to place it on top of a shelf. Calculate the GPE of the crate.
140.76 J
1.66 J
1,379.4 J
5.89 J
Choose the answer that has the most GRAVITATIONAL POTENTIAL energy.
a 500 kg boulder on a 5 meter hill
a 500 kg boulder on a 10 meter hill
a 500 kg boulder on a 20 meter hill
What two factors affect kinetic energy?
mass
speed
height
mass and speed
mass and height
What two factors affect GRAVITATIONAL POTENTIAL energy?
mass
height
speed
mass and speed
mass and height
A plane flying above the ground has what energy?
Only GPE because it is high
Only KE because it is moving
GPE and KE because it is off the ground and moving
Unit of measure for energy.
newtons
m/s/s
joules
kg
What energy transformation occurs as bioluminescent algae glow in the ocean?
Radiant --> Chemical
Thermal --> Radiant
Chemical --> Radiant
Thermal --> Chemical
What energy transformation occurs in the chameleon as it quickly launches its tongue to catch an insect?
Radiant --> Chemical
Thermal --> Chemical
Chemical --> Mechanical
Mechanical --> Chemical
What energy transformation occurs during photosynthesis?
Chemical --> Radiant
Thermal --> Chemical
Radiant --> Chemical
Mechanical --> Thermal
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