Semester 1 Final Exam Review

Front

What is a conductor?

Back

A material that allows electric current to flow easily.

Front

What is the law of conservation of energy?

Back

Energy can't be created or destroyed, only transformed from one form to another.

Front

What is free fall?

Back

Free fall occurs when an object is falling under the influence of gravity only, typically in a vacuum or outer space.

Front

What energy transformation occurs in a toaster?

Back

Electrical energy is transformed into thermal energy and light energy.

Front

How does the energy of an electromagnetic wave change with wavelength?

Back

If the wavelength is lengthened, the energy of the wave decreases.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, related to the motion of particles.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is the difference between renewable and non-renewable energy sources?

Back

Renewable energy sources can be replenished naturally (like solar and wind), while non-renewable sources (like fossil fuels) cannot.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.