Science QA #2 Review

Front

What is electrical energy?

Back

Electrical energy is the energy that comes from electric charges. It powers devices like lights, computers, and appliances.

Front

What is a pushing force?

Back

A pushing force is a type of force that moves an object away from you. For example, when you hit a ball with a bat, you are using a pushing force.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating objects. It travels in waves and can be heard when it reaches our ears.

Front

What is mechanical energy?

Back

Mechanical energy is the energy of motion. It is needed for activities like playing sports, swinging, and jumping.

Front

What happens when air escapes from a balloon?

Back

When air escapes from a balloon, it creates a pushing force that can move objects, like a balloon-powered boat.

Front

What is the purpose of a drum?

Back

The main purpose of a drum is to produce sound energy through vibrations when it is struck.

Front

What is the role of a straw in a balloon-powered boat?

Back

The straw allows air to escape from the balloon, which helps propel the boat forward.

Front

What is a pulling force?

Back

A pulling force is a type of force that moves an object towards you. For example, pulling a rope is using a pulling force.

Front

What is the difference between pushing and pulling forces?

Back

Pushing forces move objects away, while pulling forces move objects closer.

Front

What is an example of an object that uses electrical energy?

Back

A light bulb is an example of an object that uses electrical energy to produce light.