potential energy
T/F: The more mass an object has, the less PE it has.
What is false?
What is 300J
the more _______ something has the more kinetic energy it has
What is mass/velocity?
What is the formula for PE?
PE=mgh
T/F: A ball rolling down the hill has KE.
What is true?
How much mass does an object have if it's PE is 600J and it is sitting 8m above the ground?
What is 7.6Kg
energy is measured in
What is joules
What is the formula for KE?
KE=(1/2)mv^2
True or false: giving a ball more height before dropping it, will directly increase its KE.
False.
KE=(1/2)m(v2): Units for mass
What is Kg.
the force that brings objects to the ground
What is gravity
How much PE does an object have if it has a mass of 10 kg and a height of 25 m?
2450 j
What is the velocity of a roller coaster that has a mass of 600kg and a KE of 2800J?
What is 3.1 m/s
true or false the faster something moves the more kinetic energy it has
What is true
How much KE does an object have if it has a mass of 10 kg and a velocity of 45 km/h?
10,125 j
T/F: A ball that is about to roll down a hill has PE.
What is true?
How can I give a car more KE?
Give it more mass or give it more velocity.
How much PE does an object have if it has a mass of 60Kg and a height of 20 m?
What is 14700 J
At the top of a hill on a rollercoaster, the rollercoaster has maximum _______. On the way down the hill the ______ turns into ______. At the bottom of the hill, the rollercoaster has maximum ________.
What is PE, PE, KE, and KE?
What is the velocity of a ball that has a mass of 5 kg and a KE of 2500 j?
31.6 km/h