Electricity and Circuits Worksheet

When electricity is flowing in a wire made of copper, what inside the wire is actually moving?

• electrons
• protons

• neutrons

• a wire

Tags

NGSS.HS-PS2-5

Why does when you rub an inflated balloon against a wool sweater, the balloon then "sticks" to a wall?

• an increase in the number of electrons on the balloon

• a decrease in the mass of the balloon

• the balloon becomes heavier than air

• the balloon absorbs moisture from the air

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Two balloons are observed that they repel each other. Why do the balloons repel each other?

• balloons have the same electric charge

• balloons have the same mass

• balloons are filled with different gases

• balloons are tied with a string

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If you have a negatively charged rod approaching a neutral ball. What direction will the ball move first?

• towards the rod

• away from the rod

• upwards

• downwards

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Two objects are rubbed together. If object A acquires an excess of 100 electrons object B must have?

• lost 100 electrons

• gained 100 electrons

• remained neutral

• lost 50 electrons

When a plastic rod is rubbed with wool, the wool acquires a positive charge because?

• electrons were transferred from the wool to the rod

• protons were transferred from the rod to the wool

• neutrons were transferred from the wool to the rod

• the rod gained protons from the wool

What circuit will make the light bulb glow?

• closed
• open

• neither

• both

Why does the string of lightbulbs not light when one of the lightbulbs is burned out?

• the lights are arranged on a parallel circuit

• the lights are arranged on a series circuit

• the light are on a wire

• The lights are old

The diagram is an incomplete circuit. What item would allow the bulb to light up if it were used to connect point A to point B?

• any metal (metal coin, paper clip, screw)

• a piece of plastic

• a rubber band

• a wooden stick

What would be a poor conductor of electricity?

• anything not metal (plastic, rubber)

• copper wire

• aluminum foil

• iron rod

Tags

NGSS.MS-PS2-5