Energy Unit Review 2024

Front

What is work in physics?

Back

Work is done when a force causes an object to move. It is calculated using the formula W = Fd, where W is work, F is force, and d is distance.

Front

How do you calculate work done?

Back

Work done (W) is calculated using the formula W = Fd, where F is the force applied and d is the distance moved in the direction of the force.

Front

What is the unit of work?

Back

The unit of work is the Joule (J). One Joule is equal to the work done when a force of one Newton moves an object one meter.

Front

What is kinetic energy (KE)?

Back

Kinetic energy is the energy an object has due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

How do you calculate kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

What is the formula for calculating force?

Back

Force can be calculated using the formula F = W/d, where F is force, W is work done, and d is distance.

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer areas of a liquid or gas rise and cooler areas sink.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as heat from the sun reaching the Earth.

Front

If a boulder is lifted 10 meters with a force of 30 Newtons, how much work is done?

Back

300 Joules.