Energy Flashcardziz 1

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is work in physics?

Back

Work is done when a force causes an object to move. It is calculated using the formula W = Fd, where W is work, F is force, and d is distance.

Front

What is the unit of work?

Back

The unit of work is the Joule (J).

Front

How do you calculate work done?

Back

Work done (W) is calculated using the formula W = Fd, where F is the force applied and d is the distance moved in the direction of the force.

Front

What happens to energy in a domino effect?

Back

In a domino effect, potential energy is converted to kinetic energy as each domino falls, transferring energy to the next domino.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

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 the relationship between force and mass?

Back

Force is the product of mass and acceleration, as described by Newton's second law: F = ma.

Front

What is the significance of a stronger barricade in a soapbox derby?

Back

A stronger barricade is necessary to stop heavier cars, as they have more momentum and require more force to stop.

Front

If 500 N of force moves a car 4 m, how much work is done?

Back

2000 J of work is done (W = Fd = 500 N x 4 m).