Type of energy
If the roller coaster car has completely stopped at the top of the hill, what type of energy does the roller coaster car have more of?
potential energy due to gravity (PEg)
What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s?
16,875 J
m = 2kg and g = 10 m/s2 and h = 10m. Find the PEg
200 J
A spring (k = 7.50 N/m) has been stretched 0.40 m from its equilibrium position. What is the potential energy now stored in the spring?
0.6 J
What kind of energy do radios have?
Sound
What is the Kinetic Energy of a 1200 kg object that is moving with a speed of 24 m/s?
345,6000 J
Given: m = 5kg and g = 10 m/s2 and h = 100m. Find PEg.
5000 J
k= 8.5 N/m, x= 6 m. What is the PEe?
153 J
What type of energy is stored in a stretched rubber band?
elastic potential energy (PEe)
What is the Kinetic Energy of a 478 kg object that is moving with a speed of 15 m/s?
53,775 J
Given: m = 5kg and g = 10 m/s2 and h = 2.5m. Find PEg.
125 J
k= 92 N/m, x = 30 m. Find PEe.
41,400 J
What type of energy does the Sun give?
Light/ Radiant
What is the Kinetic Energy of a 100 kg object that is moving with a speed of 12.5 m/s?
7,812.5 J
m = 5kg and g = 10 m/s2 and h = 5 m. Find PEg.
250 J
k= 6.3 N/m, x = 5.9 m. Find PEe.
109.6 J
If the roller coaster car begins to move again, when will it have the most kinetic energy?
Bottom of the hill?
A ball has a mass of 2Kg, suppose it travels at 10m/s. Find the kinetic energy possessed by it.
100 J
m = 2Kg, h = 10m and g = 10 m/s2. Find PEg.
200 J
Given the equation for elastic potential energy, PEe = ½ k*x^2, how much elastic potential energy does a trampoline store if the trampoline has a spring constant of 115 kg/s2 and it is depressed (stretched downward) 1.4 m
80.5 J