Physical Science Unit 3 Review

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink, creating a circulation pattern.

Front

How is work calculated?

Back

Work is calculated using the formula: Work (W) = Force (F) x Distance (d). It is measured in Joules (J).

Front

What is the unit of power?

Back

The unit of power is the Watt (W), which is defined as one Joule per second.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It is greatest when an object is at its highest point.

Front

When does work occur?

Back

Work occurs when a force is applied to an object and the object moves in the direction of the force.

Front

What is the formula for calculating power?

Back

Power (P) = Work (W) / Time (t). It measures how quickly work is done.

Front

What is the relationship between work and energy?

Back

Work is a transfer of energy. When work is done on an object, energy is transferred to that object.

Front

What happens to potential energy at the top of a roller coaster?

Back

At the top of a roller coaster, potential energy is at its maximum due to the height of the coaster.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position.

Front

What is the formula for kinetic energy?

Back

Kinetic Energy (KE) = 1/2 mv², where m is mass and v is velocity.