Flashcard Review: Work and Power

Front

What is Work?

Back

Work is done when a force is exerted on an object and the object moves in the direction of the force. It is measured in joules (J).

Front

What is the formula for calculating Work?

Back

Work (W) = Force (F) × Distance (d) where Work is in joules, Force is in newtons, and Distance is in meters.

Front

What unit is used to measure Work?

Back

Work is measured in Joules (J).

Front

What is Power?

Back

Power is the rate at which work is done or energy is transferred. It is measured in watts (W).

Front

What is the formula for calculating Power?

Back

Power (P) = Work (W) / Time (t) where Power is in watts, Work is in joules, and Time is in seconds.

Front

What unit is used to measure Power?

Back

Power is measured in Watts (W).

Front

What is Force?

Back

Force is a push or pull on an object that can cause it to accelerate. It is measured in newtons (N).

Front

What is the relationship between Work and Energy?

Back

Work done on an object results in a change in energy. Energy can be transferred or transformed but cannot be created or destroyed.

Front

How do you calculate Work done when a force is applied at an angle?

Back

Work = Force × Distance × cos(θ) where θ is the angle between the force and the direction of motion.

Front

What is the significance of the slope of a ramp in Work and Power problems?

Back

The slope of a ramp affects the distance over which work is done and can influence the amount of force needed to move an object.