Mission Mastery: 5.8BC Circuits & Behavior of light

Multiple Choice

Which of the following is a common use of electric circuits in your home?

• Lighting a room

• Boiling water on a gas stove

• Opening a window manually

• Writing with a pencil

Multiple Choice

Which statement is a logical conclusion based on the information in the chart about the circuits tested by Jenny and Marcus?

• An electric current is flowing through all five circuits.

• An electric current is not flowing through Circuit 2.

• An electric current is not flowing through Circuits 1, 3, 4, and 5.

• The electric current in all five circuits is being transformed into a temporary magnet.

Multiple Choice

Which of these pictures correctly represents reflection of light?

• Picture A

• Picture B

• Picture C

• Picture D

Multiple Choice

A circuit is composed of a lightbulb, a conducting wire, a battery, and a switch. What occurs when the switch is closed?

• Electricity from the battery overloads the switch and causes the wire spark.

• Electricity from the battery lights the bulb.

• Electricity from the battery does not reach the bulb.

• Electricity from the battery sometimes reaches the bulb, but does not light it.

Open Ended

Explain why closing a switch in a circuit allows the bulb to light up, using the concept of electric current.

Multiple Choice

Observe the diagram. How many bulbs would turn on if a student closed Switch C and Switch D?

• 0

• 1

• 2

• 3

What could the student do to turn the bell off but keep the bulbs lit?

Multiple Choice

A student designed the circuit below. The bell is on and both bulbs are lit. What could the student do to turn the bell off but keep the bulbs lit?

• Remove Wire 1 only

• Remove Wire 3 and Wire 5

• Remove Wire 2 only

• Remove Wire 1 and Wire 3

What could the student do to turn the bell off but keep the bulbs lit?

Multiple Select

Which of these best demonstrates the reflection of light? Select TWO correct answers.

• Looking out a glass window

• Looking in a mirror

• Looking at the image on a metal spoon

• Looking in a fish tank

• Looking at stars on a clear night

Multiple Choice

The diagram shows a ray of light shining on a mirror. What happens when the light hits the mirror?

• The light is refracted by the mirror.

• The light is reflected by the mirror.

• The light is destroyed by the mirror.

• The light is absorbed by the mirror.

Fill in the Blank

Light travels in a straight ___ when it is not reflected or refracted.