Physical Science GMAS Review part 2

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What does it mean if velocity is increasing?

Back

It means the object is accelerating.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What causes leaves to appear green?

Back

Leaves appear green because they absorb all colors of light except green.

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another.

Front

What are the three methods of heat transfer?

Back

Conduction, convection, and radiation.

Front

How does conduction work?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

How does convection work?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

How does radiation work?

Back

Radiation is the transfer of heat through electromagnetic waves.

Front

What is frequency in sound?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).