Physics Questions on Kinetic Energy

Front

What is Kinetic Energy (KE)?

Back

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

Front

What is Gravitational Energy (GE)?

Back

Gravitational Energy is the potential energy held by an object because of its height above the ground. It is calculated using the formula GE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How does friction affect kinetic energy?

Back

Friction converts kinetic energy into thermal energy, causing the object to slow down.

Front

What happens to energy in a closed system?

Back

In a closed system, energy is conserved; it can change forms but the total amount of energy remains constant.

Front

What is the principle of energy transfer?

Back

Energy transfer occurs when energy moves from one object or system to another, such as when a ball bounces off the ground.

Front

Why does a pendulum eventually stop swinging?

Back

A pendulum stops swinging due to energy loss from air resistance and friction, which convert kinetic energy into thermal energy.

Front

What is the relationship between kinetic energy and speed?

Back

Kinetic energy increases with the square of the speed; if speed doubles, kinetic energy increases by a factor of four.

Front

What is the role of elastic energy in bouncing balls?

Back

Elastic energy is stored in the material of the ball when it deforms upon hitting the ground, which helps it bounce back.

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

How does height affect gravitational energy?

Back

Gravitational energy increases with height; the higher an object is, the more gravitational energy it has.