Misc.
Calculating PE/GPE
Calculating KE
Calculating Work
Calculating Power
100
What is Energy?
The ability to do work
100
What is the formula for calculating PE?
PE = m x g x h
100
Which has more Kinetic Energy, a ball moving at 3 m/s or 5 m/s?
5 m/s
100
What is the formula for work?
work = force x distance
100
What is the formula for power?
power = work/time
200
What are chemical, nuclear, thermal, electric, electromagnetic, mechanical, (and sound)?
The 6 fundamental forms of energy.
200
Calculate the PE of a rock that has a mass of 60 kg and is 10 m high.
5880 J
200
Determine the kinetic energy in a 7 kg ball thrown with a velocity of 21 m/s.
1543.5 Joules
200
A 550 N car is dropped from an altitude of 5500 meters. What is the total work performed on the car?
3,025,000 J
200
The flash performs 16,000 Joules of work pulling the Reverse Flash in a bag for 25 seconds. What is the Flash's power?
640 watts
300
What is the difference between kinetic energy and potential energy?
K.E.= is the energy of motion P.E.= is stored energy due to it's position (height)
300
How much potential energy would a 3 kg table have if it's at the top of a hill 117 m high?
What is 3439.8 J
300
The computer weighs 3 kg, has 45,344 J of KE. Calculate the velocity at which it was thrown towards the ground?
173.87 m/s towards the ground
300
A backhoe performs 110,000 Joules of work making a road that covers a distance of 80 meters. What is the force being applied?
1375 N
300
In 15 seconds, the power exerted onto a golf ball was 50,000 watts. What is the work done on the golf ball?
750000 J
400
What is Mass?
The amount of matter in an object and never changes
400
Which has more potential energy, a calculator on the ground or a calculator on the table 1.5 m high?
on the table. (greater height)
400
Calculate the kinetic energy if an cart weighs 15 N and is traveling at 60 m/s north.
2754 J
400
A woman lifts a 35 kg child a distance of 1.5 meters and carries her forward for 6.5 meters. How much work does the woman do in carrying the child?
2229.5 J
400
Jackie weighs 500 N. She climbs the stairs, 3 meters in 4 seconds. Determine Jackie's power
375 watts
500
Write the correct energy conversion order a PS4 goes through when you turn it on.
Electrical, mechanical, Electromagnetic, and thermal
500
Calculate the GPE of an object that has a mass of 706 kg that is dropped from a height of 1403 meters.
9707076.4 J
500
A fireball traveling at 5 m/s towards Earth has 79,000 J of KE. What is the mass of the fireball?
6320 kg
500
A crane lifts 500 kg beam with 34,005 J. How far did the crane move the beam?
6.94 m
500
Superman weighs 215 lbs. He flies from Metropolis to Gotham, 15,999 meters in 250 seconds. Calculate Superman's power.
61916.13 watts
M
e
n
u