Inv. 4 Kinetic Energy

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy an object possesses due to its motion. It depends on the mass of the object and the speed at which it is moving.

Front

What is the formula for calculating Kinetic Energy?

Back

The formula for Kinetic Energy (KE) is KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

What happens to Kinetic Energy when the speed of an object doubles?

Back

If the speed of an object doubles, its Kinetic Energy increases by a factor of four, because KE is proportional to the square of the speed.

Front

What is Temperature in relation to Kinetic Energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance. Higher temperature means higher average kinetic energy.

Front

How does heating a solid affect its volume?

Back

Heating a solid typically causes it to expand, increasing its volume due to the increased motion of its particles.

Front

What occurs during a collision between fast and slow particles?

Back

During a collision, the fast particle transfers some of its kinetic energy to the slow particle, causing the fast particle to slow down and the slow particle to speed up.

Front

What is Thermal Energy?

Back

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

Front

What is the relationship between Kinetic Energy and mass?

Back

Kinetic Energy is directly proportional to the mass of an object; as mass increases, Kinetic Energy increases if speed remains constant.

Front

What happens to energy when two objects at different temperatures come into contact?

Back

Energy transfers from the hotter object to the cooler object until they reach thermal equilibrium.

Front

What is an example of energy transfer in a collision?

Back

In a collision, kinetic energy can be transferred from one particle to another, such as when a fast-moving ball hits a stationary ball.