CBA 3 Review game

Unlike battery-powered calculators, solar calculators are powered by solar cells. Which of these energy changes is used to power a solar calculator?

• Heat energy changing to chemical energy

• Light energy changing to chemical energy

• Light energy changing to electrical energy

  
  

• Chemical energy changing to electrical energy

Tags

NGSS.HS-PS3-3

A metal spoon was left in a pot of boiling soup.  The cook burned a finger by touching the spoon. Why did his finger get burned?

• The metal spoon chemically reacted with the cook’s hand.

• The metal spoon conducted electricity to the cook’s hand.

• The metal spoon conducted heat to the cook’s hand.

• The metal spoon insulated the cook’s hand.

Which of these changes to the electric circuit shown above will cause the light bulb to light up?

• Straightening the wire so that the current can flow more easily.

• Adding a switch and more wire so that the current can flow more easily.
  

• Turning one battery so that its positive end connects to the other battery’s negative end.

• Making the length of wire the same on both sides of the light bulb.

A student plans to make this lightbulb glow. All of the following objects can be used to

complete the circuit EXCEPT —

• a copper penny

• a plastic comb

• a metal clip

• an iron nail

Tags

NGSS.MS-PS2-3

A student builds a circuit made up of a battery, two lightbulbs, and a switch, as shown

below.

What will the student most likely observe in this circuit?

• Lightbulb 1 and Lightbulb 2 will both be on.

• Lightbulb 1 will be off, but Lightbulb 2 will be on.

• Lightbulb 1 and Lightbulb 2 will both be off.

• Lightbulb 1 will be on, but Lightbulb 2 will be off.

Tags

NGSS.4-PS3-2

The circuit diagram below shows a series circuit with two d-cell batteries connected to

four light bulbs and four and four different materials labeled 1, 2, 3, and 4.

Which of the four materials is acting as an insulator rather than a conductor?

• 1

• 2

• 3

• 4

A group of students decide to investigate what is required to make a complete path through which an electric current can pass.  The students used different objects to see if they could produce heat.  They tested each object but did not record their observations.  Why is it important for students to repeat this investigation?

• to formulate a new hypothesis

• to record accurate data

• to test additional objects
  

• to communicate a written conclusion

The circuit pictured above is incomplete.  In order to turn on the light, a piece of wire needs to be connected from—

• A to C

  
  

• A to D

  
  

• B to C

  
  

• C to D

  
  

Tags

NGSS.MS-PS2-3

Which are characteristics of the force called friction? Choose all that apply.

• Friction occurs between surfaces in contact.

• Friction can be helpful or harmful.

• Friction does not act on objects that are not moving.

• Friction can make it hard for things to move.

• Friction opposes (resists) motion.

9. The image provided shows behaviors of light. In which of the numbered locations is light refracting? 

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS4-2