Unit 4- Energy Transfer Exam-7th Grade 2024

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as potential energy to kinetic energy.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as a book on a shelf.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, such as a moving car.

Front

What does the Law of Conservation of Energy state?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

Give an example of potential energy being converted to kinetic energy.

Back

A stretched rubber band being released is an example of potential energy converting to kinetic energy.

Front

What happens when you rub your hands together quickly?

Back

Rubbing your hands together generates heat by converting mechanical energy (friction) into heat energy.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, which is the total kinetic energy of particles in an object.

Front

What is an example of energy being transferred?

Back

Heat transfer occurs when you touch a hot object, transferring thermal energy from the object to your hand.

Front

What is friction?

Back

Friction is the resistance that one surface or object encounters when moving over another, often converting kinetic energy into thermal energy.

Front

What is an observation in scientific investigation?

Back

An observation is the act of watching and noting phenomena as they occur, which can help in gathering data for experiments.