Energy

Front

What is kinetic energy?

Back

Kinetic energy is the energy that 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 factors affect kinetic energy?

Back

Kinetic energy is affected by the mass of the object and its velocity. An increase in either mass or velocity results in an increase in kinetic energy.

Front

How does speed relate to kinetic energy?

Back

The faster an object moves, the more kinetic energy it has. Kinetic energy increases with the square of the velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. It is often associated with gravitational energy, which depends on height.

Front

At which points in a pendulum's swing is potential energy at its maximum?

Back

Potential energy is at its maximum at the highest points of the swing, which are points 1 and 5 in a typical pendulum.

Front

What is the relationship between kinetic energy and potential energy in a pendulum?

Back

In a pendulum, kinetic energy is highest at the lowest point of the swing, while potential energy is highest at the highest points of the swing.

Front

What is the formula for calculating potential energy?

Back

Potential energy (PE) is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

Which point has the greatest kinetic energy in a pendulum?

Back

The point with the greatest kinetic energy in a pendulum is the lowest point of the swing.

Front

What is an example of an object with kinetic energy?

Back

A tennis ball rolling across the court is a good example of an object with kinetic energy.

Front

How does height affect potential energy?

Back

The higher an object is positioned, the more potential energy it has, as potential energy is directly proportional to height.