Physical Science Semester Test

The force or push that causes electric charges to move is called.

• resistance

• voltage difference

• current

• static electricity

A material through which electrons do NOT flow easily is a(n).

• insulator

• fuse

• conductor

• circuit breaker

Tags

NGSS.MS-PS2-3

Mr. Robinson and his class are conducting an experiment. The class needs to choose a good insulator. Which of the following could be used as an insulator?

• plastic plate

• copper wire

• silver spoon

• gold necklace

Tags

NGSS.MS-PS3-3

What is the current produced by a 9-volt battery flowing through a resistance of 0.2 ohms?

• 1.8 amps

• 45 amps

• 0.022 amps

• 8.8 amps

Silver has a resistance of 0.0198 ohms. What voltage would produce a current of 100 amps?

• 1.98 V

• 5,050 V

• 0.000198 V

• 100.0198 V

The function of a generator is to change.

• A. chemical energy to electrical energy

• B. electrical energy to chemical energy

• C. electrical energy to mechanical energy

• D. mechanical energy to electrical energy

Tags

NGSS.HS-PS3-3

Which circuit below contains the greatest voltage?

• A circuit with a current of 20 amps and a resistance of 16 ohms

• A circuit with a current of 10 amps and a resistance of 10 ohms

• A circuit with a current of 25 amps and a resistance of 16 ohms

• A circuit with a current of 20 amps and a resistance of 10 ohms

What process is the method by which a neutral object obtains an electrical charge from a distance?

• convection

• conduction

• radiation

• induction

This contains a piece of metal that melts if it gets too hot in order to open a circuit.

• conductor

• insulator

• fuse

• circuit breaker

Tags

NGSS.MS-ETS1-1

Which of the following objects would NOT be a good insulator of electric charge?

• skin

• wood

• plastic

• rubber