1st Semester Final Exam Review of ENERGY

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It is the energy an object has when it is at rest and has the potential to move.

Front

At which point does a pendulum have the greatest potential energy?

Back

A pendulum has the greatest potential energy at its highest point, which is Point A.

Front

What factors determine the amount of kinetic energy an object has?

Back

The amount of kinetic energy an object has depends on its velocity (speed) and mass.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What type of heat transfer occurs when warm air rises and cool air sinks?

Back

This process is known as convection.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What type of heat transfer occurs when a person feels warmth from a fire without touching it?

Back

This type of heat transfer is called radiation.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as heat from the sun or a fire.

Front

In which situation does heat energy move mainly by conduction?

Back

Heat energy moves mainly by conduction when the handle of a cast iron skillet becomes too hot to touch while cooking.