Saavas Topic 3: Energy & Simple Machines

Front

What is a pulley?

Back

A simple machine that consists of a wheel with a rope or chain used to lift or lower objects.

Front

What type of energy conversion occurs when an object falls?

Back

Potential energy is converted to kinetic energy.

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is the difference between input force and output force in a machine?

Back

Input force is the force applied to the machine; output force is the force applied by the machine.

Front

What is efficiency in the context of machines?

Back

The measure of how much work put into a machine is converted into useful output work.

Front

What is potential energy?

Back

The energy stored in an object due to its position or height.

Front

What is a lever?

Back

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

Front

What is a wedge?

Back

A simple machine that is a triangular-shaped tool used to separate objects or hold them together.

Front

What is a screw?

Back

A simple machine that is an inclined plane wrapped around a cylinder or cone.

Front

What is gravitational potential energy?

Back

The potential energy an object has due to its height above the ground.