24-25 Energy Study Guide

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically related to its height above the ground.

Front

At which point does a ball have the greatest gravitational potential energy?

Back

The ball has the greatest gravitational potential energy at its highest point because it has the maximum height and will convert this energy to kinetic energy as it falls.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its gravitational potential energy decreases while its kinetic energy increases, assuming energy is conserved.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion, which depends on its mass and speed.

Front

How is kinetic energy calculated?

Back

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

Front

What is the relationship between speed and kinetic energy?

Back

The kinetic energy of an object increases as its speed increases, since kinetic energy is proportional to the square of the speed.

Front

What is energy conservation?

Back

Energy conservation is the principle that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, which is related to its temperature.

Front

What is the effect of temperature on the kinetic energy of particles?

Back

As temperature increases, the kinetic energy of particles increases, causing them to move faster.

Front

What is the significance of the highest point in a ball's trajectory?

Back

At the highest point, the ball has maximum gravitational potential energy and minimum kinetic energy before it starts to fall.