Physical Science Q4 Vocabulary Test

Front

actual mechanical advantage

Back

The mechanical advantage that accounts for all mechanical losses sustained through using a machine

Front

Which type of current involves charge carriers changing direction periodically?

Back

Alternating current

Front

What is biomass energy?

Back

Chemical potential energy obtained from renewable organic materials

Front

What is the function of a circuit breaker?

Back

To open when there is too much current in a circuit

Front

What is a compound machine?

Back

A machine that combines two or more simple machines

Front

electric circuit

Back

The loop through which current electricity can flow

Front

Electromagnet

Back

A combination of a strong magnet and an electrified wire coil

Front

What is the ability to do work called?

Back

Energy

Front

What is the physical property where a material's magnetic domains align with an external magnetic field?

Back

Ferromagnetism

Front

What is a fuel formed from the remains of plants and animals that lived in the past?

Back

Fossil fuels