SC.5.P.10.3 & 11.1

When two objects have the same electrical charge they will:

• repel one another

• attract one another

• create electricity

• produce a popping sound

Tags

NGSS.MS-PS2-3

Explain why the girl's hair is sticking to the balloon.

• The balloon is negatively charged and the girl's hair is negatively charged so they both stick to one another.

• The balloon is positively charged and the girl's hair is positively charged so they both stick to one another.

• The girl's hair and the balloon have the exact same charge and therefore, they both stick to one another.

• The girl's hair has the opposite charge of the balloon and therefore, they stick to one another.

Tags

NGSS.MS-PS2-3

Bobby hung two balloons a few inches apart with a string on the table, so that they hung down freely. He rubs one balloon with a wool cloth and does nothing to the other. After he puts the rubbed balloon back in place, what will happen with both balloons?

• The balloons will repel, pushing away from each other.

• The balloons will attract, pulling towards one another.

• The balloons will repel, after they have touched one another.

• The balloons will stay the same.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following statements is NOT true about electrically charged objects?

• In order for electrically charged objects to repel, they must have the same charge.

• In order for electrically charged objects to attract, they must have opposite charges.

• In order for electrically charged objects to repel, they must have opposite charges.

• Electrically charged objects do not have to touch in order to attract or repel.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Megan wants to determine if an electrical circuit has electricity flowing through it. Which of the following evidence is proof that the circuit has an electrical current?

• The circuit is a closed loop.

• A light bulb is lit in the circuit.

• The circuit's switch is in the closed position.

• Wires in the circuit are made of conducting material.

Anita and Tomas are trying to determine what decreases light bulb brightness by testing and observing the following simple circuits. Which choice identifies the students' next testable question?

• What is the effect of adding a fan to both circuits?

• What is the effect of adding another bulb to the circuit?

• What is the effect of adding one more battery to both circuits?

• What is the effect of adding a different type of wire to both circuits?

The circuit shows the light bulb turned on. How is the light bulb able to turn on?

• The circuit is a closed circuit and therefore the bulb is on.

• The battery is the source of energy to produce an electric current through the closed circuit to turn on the light bulb.

• The switch is closed on the circuit and therefore creates a complete loop turning the light bulb on.

• All of the above.

Tags

NGSS.4-PS3-2

Larry built this circuit. What will happen when Larry closes the switch?

• Nothing will happen because it is not a closed circuit.

• Nothing will happen because there is a light bulb and a buzzer.

• Both the light bulb and the buzzer will turn on.

• Both the light bulb and the buzzer will turn off.

Tags

NGSS.MS-ETS1-1

A student tested different items to determine which items conduct electricity. Which of the following items include ONLY items that did not conduct electricity?

• copper wire, glass, steel paper clip

• rubber eraser, glass rod, plastic button

• steel paper clip, plastic button, glass rod

• rubber eraser, plastic button, copper wire

What materials should be used to make a wire that will conduct electricity?

• glass

• plastic

• copper

• wood