Heat and Electricity Unit Assessment

Each picture shows a source of heat. Which heat source transfers heat energy through radiation?

• the sun
• boiling water
• ice cube melting
• stirring hot liquid

• The light came on, and the buzzer made a sound at the same time. 
• The light and buzzer stayed off because the light and buzzer have to be in different circuits. 
• The light and buzzer stayed off because there was no source of electric current in the circuit.
• The light and buzzer stayed off because the circuit needs two switches for two different elements. 

Tags

NGSS.4-PS3-2

Many homes use electric ovens to cook food. What energy transformation occurs in an electric oven?

• thermal energy into light energy 
• thermal energy into electrical energy
• electrical energy into thermal energy
• electrical energy into energy of motion

• heat energy to sound energy
• electrical energy to sound energy
• energy of motion to sound energy
• electrical energy to energy of motion 

A circuit made of wires, a lamp, a switch, and a cell is shown at the right. What change is needed for the lamp to glow? 

• The switch needs to be opened.
• The switch needs to be closed.
• The cell needs an insulator.
• The wire needs to be connected to the bottom of the cell.

Tags

NGSS.4-PS3-2

Which material is the best conductor of heat? 

• aluminum 
• glass
• wood
• plastic

Tags

NGSS.MS-PS3-3

Which of the following items could not be used to create a closed circuit? 

• battery, light bulb 
• battery, wires, buzzer
• battery, light bulb, wires 
• battery, light bulb, buzzer, wire

Which statement best describes the circuit in the diagram?

• If one light goes out the other light will also go out because it is a series circuit.
• There is only 1 path.
• If one light goes out the other light will stay on because it is a parallel circuit.
• The circuit is opened.

Which is NOT an insulator.

• Wool
• Plastic
• Copper
• Glass

Which is an example of conduction?

• A pot on a stove

• The sun

• Rubbing hands together

• A radiator warming up to heat the air.

Tags

NGSS.MS-PS3-4