Work and Energy Review

Front

What is a device that changes the force or increases the motion from work?

Back

Machine

Front

At which point in a pendulum's swing is potential energy at its greatest?

Back

At the highest point of the swing (Point 1).

Front

What is the rate at which energy is converted?

Back

Power

Front

What is it called when one form of energy is changed to another form?

Back

Energy conversion

Front

At which point is potential energy greatest in a given scenario?

Back

At the highest point (Point W).

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for gravitational potential energy?

Back

PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is work in physics?

Back

Work is done when a force causes displacement, calculated as W = Fd cos(θ).

Front

What is the unit of power?

Back

Watt (W), which is equivalent to one joule per second.