Front

What type of energy is used when pulling a door open?

Back

Mechanical energy

Front

What caused a piece of iron to change from shiny to rusty?

Back

A chemical reaction

Front

Which of the following is NOT an example of sound energy: instruments, radio, birds, or throwing a ball?

Back

Throwing a ball

Front

How can speed be calculated?

Back

Speed = distance/time

Front

What type of circuit is an open circuit?

Back

An open circuit is a circuit that is not complete, preventing current from flowing.

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is a chemical reaction?

Back

A process where substances combine or break apart to form new substances.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in an object.

Front

What is the difference between an open circuit and a closed circuit?

Back

An open circuit has a break that prevents current flow, while a closed circuit allows current to flow.