Energy

The energy contained in fossil fuels is considered which type of energy

• chemical energy

• electrical energy

• mechanical energy

• heat energy

Energy that is stored in a system or object.

• Relative positions

• Potential Energy

• Energy

• Watt

Which of the following is true about a skateboard rolling down a hill?

• The kinetic energy of the skateboard increases as it gains speed.

• The kinetic energy of the skateboard decreases as it gains speed.

• The potential energy of the skateboard increases as it gains speed.

• The skateboard does not change speed as it rolls.

Which statement is true about a roller coaster being pulled to the top of its first drop?

• The potential energy of the roller coaster decreases as it gains height.

• The kinetic energy of the roller coaster decreases as it moves at a constant speed.

• The potential energy of the roller coaster increases as it gains height.

• The kinetic energy of the roller coaster increases as it gains height.

Which of the following has the most gravitational potential energy?

• A 0.5 kg rock on the ground underneath a tree.

• A 1 kg squirrel climbing on the trunk of a tree.

• A 2 kg bird on a branch above the squirrel.

• A 3 kg bird's nest full of eggs at the top of a tree.

This controls the amount of change that can occur within a system; without enough, change cannot occur.

• Energy

• Watt

• System

• Potential Energy

Which of the following does kinetic energy depend upon?

• the weight and volume of an object

• the height and mass of an object

• the buoyancy of an object

• the mass and speed of an object

Which of the following has the most kinetic energy?

• A 1 kg ball rolling 14 m/s

• A 1 kg ball rolling 2 m/s

• A 1 kg ball rolling 10 m/s

• A 1 kg ball rolling 4 m/s

Which would have the greatest kinetic energy

• A car driving down a hill

• a ball rolling down a hill

• a person running down a hill

•  a dog sitting on top of a hill

How can a rubber band be given potential energy?

• Stretching the rubber band

• Heating the rubber band

• Freezing the rubber band

• Cutting the rubber band in half