Unit 4 Review- Energy, Force, and Motion

Front

What type of energy is transformed from sunlight for a tree to grow?

Back

Light energy is transformed into chemical energy.

Front

What is the sequence of energy transformation in a mechanical system?

Back

Mechanical energy transforms to kinetic energy, which can then transform to sound energy.

Front

How do you calculate distance traveled if you know speed and time?

Back

Distance = Speed x Time.

Front

If a car travels at 30 miles/hr for 3 hours, how far does it travel?

Back

90 miles.

Front

What is the formula to calculate time taken for a journey?

Back

Time = Distance / Speed.

Front

If a speed boat travels 200 miles at 20 miles/hr, how long will it take?

Back

10 hours.

Front

What does the Law of Conservation of Energy state?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is potential energy?

Back

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

Front

What is the difference between mechanical energy and kinetic energy?

Back

Mechanical energy is the sum of potential and kinetic energy in a system.