Regular Science DCP #2 Review 2024/2025

Front

What type of energy does a washing machine convert electrical energy into?

Back

Mechanical energy.

Front

What is the process of cutting a tree limb into logs classified as?

Back

A Physical Change.

Front

What is the process of burning logs in a fireplace classified as?

Back

A Chemical Change.

Front

What indicates a chemical change when mixing liquids?

Back

Mixing two clear liquids and forming a blue liquid.

Front

What is the relationship between mass and gravity?

Back

The more mass an object has, the more gravity it will have.

Front

How do you calculate force using mass and acceleration?

Back

Force = mass × acceleration.

Front

If an object has a mass of 5.0 kg and accelerates at 8.0 m/s², what is the force applied?

Back

40 N.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

Melting ice.