ICP Unit 2 (Forces & Work) Review

Front

What is the formula for calculating work?

Back

Work (W) = Force (F) × Distance (d) in the direction of the force.

Front

What are the units of work?

Back

The unit of work is the Joule (J). 1 Joule = 1 Newton × 1 meter.

Front

What is a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.

Front

What are the three classes of levers?

Back

1st Class: Fulcrum between effort and load (e.g., seesaw). 2nd Class: Load between fulcrum and effort (e.g., wheelbarrow). 3rd Class: Effort between fulcrum and load (e.g., tweezers).

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help lift objects with less effort.

Front

What are examples of inclined planes?

Back

Examples include ramps, slides, and wedges.

Front

How does increasing the number of threads on a screw affect work?

Back

More threads make the work easier by allowing the screw to lift loads with less force.

Front

What is the definition of force?

Back

Force is a push or pull acting on an object, measured in Newtons (N).

Front

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

Back

According to Newton's second law, Force (F) = Mass (m) × Acceleration (a).

Front

What is the definition of energy?

Back

Energy is the capacity to do work or produce change, measured in Joules (J).