It is important to develop a large variety of energy sources.

True

False

Which statement correctly describes momentum? It is a scalar quantity because it involves magnitude only. It is a scalar quantity because it involves magnitude and direction. It is a vector quantity because it involves magnitude and direction.

If the planet mars is about 56 million kilometers from earth how long would it take for a radio wave sent from a space satellite circiling mars to reach earth

What path does energy travel as it changes from kinetic to electrical energy in a hydroelectric plant

Mass affects/does not affect the conservation of energy?

A car travels forward with constant velocity. It goes over a small stone, which gets stuck in the groove of a tire.

Describe one source of renewable energy.

What is the mass of an object with a momentum of 250 kgm/s and a velocity of 5 m/s?

The energy associated with the motion or position of an object is called

In a nuclear reactor, the moderator is: usually made of graphite placed between the fuel rods used to slow down neutrons all of the above none of the above

Break down of rock can be chemical or mechanical