Physics SLO review

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or height. It is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for calculating work?

Back

Work is calculated using the formula W = Fd, where W is work, F is force, and d is distance.

Front

What is the definition of weight?

Back

Weight is the measure of the force of gravity acting on an object, typically measured in newtons (N).

Front

How do you convert potential energy to kinetic energy?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, conserving the total mechanical energy.

Front

What is the unit of work?

Back

The unit of work is the joule (J), which is equivalent to one newton meter (N·m).

Front

If a 3.2 Kg hammer is dropped from a height of 40 meters, what is its potential energy?

Back

1,280 J (calculated using PE = mgh).

Front

What happens to the energy of a falling object?

Back

The potential energy is converted into kinetic energy as the object falls.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, force equals mass times acceleration (F = ma).

Front

How much work is done when lifting a 5000N block 10 m?

Back

50,000 J (calculated using W = Fd).