Study Guide for SPS8

Front

What is the motion of a car that is slowing down?

Back

The car is experiencing a decrease in speed, indicating it is slowing down.

Front

Why would a person weigh less on the Moon than on Earth?

Back

Because the Moon has less mass and therefore less gravity compared to Earth.

Front

What type of simple machine is used in the cap of a pickle jar?

Back

A screw is the type of simple machine found on the cap of a pickle jar.

Front

What is a door stop an example of?

Back

A door stop is an example of a wedge.

Front

What is the mechanical advantage of a block and tackle that lifts a bale of cotton?

Back

The mechanical advantage is 2.

Front

Define 'mechanical advantage'.

Back

Mechanical advantage is the ratio of the output force to the input force in a machine.

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 is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects.

Front

What is a wedge?

Back

A wedge is a simple machine that is used to separate two objects or portions of an object.

Front

What is a wheel and axle?

Back

A wheel and axle is a simple machine consisting of a larger wheel attached to a smaller axle, allowing for easier movement.