Energy and Engineering Review

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as thermal, mechanical, electrical, and chemical.

Front

What is thermal energy?

Back

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

Front

What happens to thermal energy on a hot day?

Back

Thermal energy increases, causing temperatures to rise.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electricity to flow, typically consisting of a power source, wires, and devices like bulbs.

Front

What is the purpose of a switch in a circuit?

Back

A switch is used to open or close a circuit, controlling the flow of electricity.

Front

What is the role of repeated trials in experiments?

Back

Repeated trials help ensure accuracy and reliability of results by minimizing the effects of random errors.

Front

What is a hypothesis?

Back

A hypothesis is a testable statement or prediction about the relationship between two or more variables.

Front

What is the importance of measuring in experiments?

Back

Measuring allows scientists to collect data, analyze results, and draw conclusions based on evidence.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object, related to its motion and position.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as height or tension.