Physical Science Q4 Vocabulary Test

What is a simple machine that consists of a wheel with teeth on its perimeter?

• Pulley

• Gear

• Lever

• Wedge

What is electrical energy generated by the movement of water called?

• Solar energy

• Wind energy

• Hydroelectric energy

• Geothermal energy

What is a parallel circuit?

• A circuit with a single path

• A circuit with multiple paths

• A circuit with no path

• A circuit with a broken path

What is biomass energy?

• Energy from the sun

• Chemical potential energy obtained from renewable organic materials

• Energy from wind

• Energy from water

What is a compound machine?

• A machine that uses only one simple machine

• A machine that combines two or more simple machines

• A machine that operates without energy

• A machine that is used for chemical reactions

What is a simple machine?

• A complex mechanical device

• A machine that requires electricity

• A machine that uses nuclear energy

• A basic mechanical device that changes the magnitude, direction, or distance traveled of the force used when doing work

What does resistance refer to in physics?

• The ability to conduct electricity

• The speed of light in a vacuum

• The property of matter indicating the degree to which the material slows down the flow of charge carriers

• The force of gravity on an object

What is a simple machine that consists of a rigid bar that turns about a pivot point?

• Pulley

• Lever

• Wheel and axle

• Screw

What is the purpose of a fuse in an electrical circuit?

• To increase voltage

• To open the circuit when overheated

• To decrease resistance

• To store energy

What does Ohm's law state?

• Energy is produced by nuclear reactions

• The current in a circuit is directly related to the voltage and inversely related to the resistance

• The sum of kinetic energy and all forms of potential energy in a system

• The longest and lowest energy type of electromagnetic wave