4)

What causes the Moon to orbit around the Earth?

Which of these describes an endothermic process? A. When lithium is placed in water, the temperature of the container increases. b. The combustion of kerosene releases heat. C.

What a not an aspect of relative wind

Imagine the running deer has a mass of 100 kg and is running at a speed of 8 m/s. What is the deer's kinetic energy, in joules?

Describe the energy transformations that take place in a battery-operated fan.

When changes build up on a surface they: A. apply a force to charges wandering nearby. B. create an electric field. C. a and b D. a or b

Identify the conditions for an elastic collision in a closed system. Check all that apply. Energy is conserved. Velocities may change. Momentum is conserved. Kinetic energy is conserved. Objects stick together after the elastic collision.

When the velocity of a mass on a spring is zero, the acceleration is at

Which is a disadvantage of using wind as an energy source? Check all that apply. It may be unreliable. It is not naturally occurring. It produces a lot of waste. It requires wires to carry electricity. It generates large amounts of electricity.

One step in the production of hydroelectric power involves

A pot is heated on a stove. The water begins to boil rabidly. Which explains why the water is boiling fast?