A person pushes with 4 N to push a box 6 meters. How much work was done on the box?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 24
- 240
- 12
- 67
- 0
A person holds onto a 15 kg object for 8 seconds. How much work was done on the object?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 0
- 600
- 300
- 18.75
- 200
A 18 N force pushes on a box at an angle of 40° relative to the ground. How much work is done on the box if it moves 8 meters?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 110.31
- 144
- 92.56
- -96.04
- 0
A 9 kg object is lifted 4 m off the ground. How much potential energy does it gain?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 360
- 36
- 2.25
- 18
- 0
How high up is a 3 kg object that has 60 J of potential energy?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 2
- 10
- 180
- 20
An object has 120 J of potential energy while it is 10 m off the ground. Find the object’s mass.
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 1.2
- 12
- 1200
- 60
A 4 kg object is 6 meters up a 30 degree ramp. How much potential energy does the object have?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 120
- 240
- 37.02
- 15
A 3 kg object is going 2 m/s. How much kinetic energy does it have?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 6
- 12
- 18
- 3
A 6 kg object going 4 m/s has how much kinetic energy?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 48
- 6
- 96
- 18
A 4 kg object has 50 J of Ek. Find its speed.
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 5
- 25
- 3.54
- 625
Find the mass of an object going 6 m/s that has 90 J of Kinetic Energy.
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 5
- 30
- 2.5
- 20
A spring has a spring constant of 3 and is compressed 2 meters. How much elastic potential energy is stored in the spring?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 6
- 3
- 12
- 9
A spring has 0.75 J of elastic potential energy. If the spring is stretched 1 meter, find the spring constant.
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 1.5
- 0.75
- .375
- 2
A spring with a 0.75 spring constant is stretched 1.5 meters. Find the potential elastic energy stored in the spring.
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 0.84
- 0.56
- 1.69
- 3.38
A spring with a spring constant of 0.25 has 0.18 J of Potential Elastic Energy, find how far the spring was compressed.
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 1.2
- 1.44
- 0.72
- 0.36
A 4 kg box is lifted up 3 meters. How much work was done on the box?
(Give the answer without units. If the answer is a decimal, round to two decimal places, and start with a zero: [0.5 instead of .5].)
- 120
- 12
- 13.33
- 0