1. How do we tell how much energy a ray of light has? By it's temperature

By it's color

By it's brightness

2. Which of the following are common forms of energy released by electrons dropping from heightened energy levels?

Light, Heat

Motion, Sound

Light, Kinetic

Heat, Potential

4. Describe the shape of a field created by a bar magnet.

5. On a microscopic scale, the energy change in a system is described by a

A change in color or texture

Measuring the temperature

A chemical equation

An odor

6. The aurora borealis lights that appear in the northern hemisphere are caused by the interaction between what?

Ultraviolet radiation from the Sun and the pollution in the Earth's air

The reflected light off the moon and the scattering particles in the atmosphere

The charged particles from the Sun and natural magnetic field of the Earth

7. What happens to the atoms of a material when you run electricity through that material?

The bonds that hold the atoms together begin to stretch due to the electric current

The neutrons, having no charge, resist the flow the electric energy through the atom

The electricity only goes into atoms that have an overall electric charge of the same orientation of the electric flow

8. The amount of potential energy stored in a magnetic field depends on what?

The size of one magnetic pole

How close two magnet poles are to each other

The number of molecules magnetically aligned in a pole

Whether the pole is a North or South pole magnet

9. Compare and contrast microscopic and macroscopic energy transfer. Give at least three comparisons for each.

10. A plane is landing at an airport. The plane has a massive amount of kinetic energy due to it's motion. When the plane lands, it activates its brakes, causing it to slow down and eventually stop. The kinetic energy that the plane had is now gone. In keeping with the Law of Conservation of Energy, which of the following is the most likely explaination of what happened to that energy?

The brakes used a coil system to convert the kinetic energy into potential energy stored in the brakes

The kinetic energy of the plane gets pushed into the air in front of it due to drag forces, causing the air to move, thus transferring the kinetic energy from the plane to the air

The brakes create friction, which transformed the kinetic energy to heat energy that was dissipated to the surroundings

The kinetic energy is being converted into sound energy by the loud engines of the plane