Electricity

Which statement correctly describes Group 1 and Group 2 objects as conductors or insulators?

• Group 1 are conductors because they make electricity flow in the opposite direction.

• Group 1 are conductors because electrical energy flows through them.

• Group 2 are insulators because electrical energy moves around them.

• Group 2 are insulators because electricity is attracted to them.

Look at the list of materials for a scientific experiment.

What would a student most likely investigate using these items?

• energy transformations

• insulators and conductors

• friction

• ocean currents

Tags

NGSS.MS-PS3-3

Why didn't the lightbulb in the diagram light up?

• Metal wires are good conductors of electricity, but string is not.

• The string is too long.

• Metal wires are good insulators of electricity, but string is not.

• The string is the wrong color.

Tags

NGSS.4-PS3-2

Which item could you connect to the wires at Point A and Point B to make the lightbulb turn on?

• plastic straw

• rubber band

• metal paper clip

• piece of paper

What transforms electrical energy into radiant energy?

(a)  

This provides a source of energy in a simple circuit.

(a)  

This allows the flow of negative particles in a simple circuit.

(a)  

Which of the following statements best explains why the light bulb does not turn on when the switch is open?

• The light bulb is too big.

• The electricity moves backwards

• The electricity cannot flow.

• It is a closed circuit.

Which statement correctly identifies and explains which glass light bulbs in the diagrams below will NOT turn on?

• Diagram 2, because the light bulb touches the battery.

• Diagram 3, because the battery is above the light bulb.

• Diagram 3, because one wire is connected to an insulator (glass).

• Diagram 3, because the light bulb is not upright.

Tags

NGSS.3-5-ETS1-1

Study two models of electrical circuits. Complete the description below to make it true.

Model B shows a(n) ________________________ (closed or open) circuit where electricity cannot flow because…

• Closed- the path is closed

• Open- there is a break in the path.

Tags

NGSS.MS-ETS1-1