Energy Notes

Radiation

1 A cube is filled with hot water. Three sides are painted different colours: black, white, and grey.

a)Which side feels hottest because it radiates heat best? _______________________________b) Which side feels coolest because it radiates heat the worst? ____________________________

2 a) What is the best colour for solar panels? __________. Why? ____________________________________ _________________________________________

b)Solar panels are on roofs and not on a wall because ________________________________________________________________________________

c) The diagram shows an electric heater. What is the best colour for the back plate? ________________ Why? ___________________________________ ________________________________________

3 Complete these sentences.a) Summer clothes should be _________ (light/dark)

coloured because

____________________________________________________________

b) The inside of a cool bag should be _________(black/white) because _____________________ _________________________________________________________________________

Radiation

1 A cube is filled with hot water. Three sides are painted different colours: black, white, and grey.

a)Which side feels hottest because it radiates heat best? _______________________________b) Which side feels coolest because it radiates heat the worst? ____________________________

2 a) What is the best colour for solar panels? __________. Why? ____________________________________ _________________________________________

b)Solar panels are on roofs and not on a wall because ________________________________________________________________________________

c) The diagram shows an electric heater. What is the best colour for the back plate? ________________ Why? ___________________________________ ________________________________________

3 Complete these sentences.a) Summer clothes should be _________ (light/dark)

coloured because

____________________________________________________________

b) The inside of a cool bag should be _________(black/white) because _____________________ _________________________________________________________________________

Radiation

solar

panel

solar

panel

Energy Notes

1 A cube is filled with hot water. Three sides are painted different colours: black, white, and grey.

a)Which side feels hottest because it radiates heat best? _______________________________b) Which side feels coolest because it radiates heat the worst? ____________________________

2 a) What is the best colour for solar panels? __________. Why? ____________________________________ _________________________________________

b)Solar panels are on roofs and not on a wall because ________________________________________________________________________________

c) The diagram shows an electric heater. What is the best colour for the back plate? ________________ Why? ___________________________________ ________________________________________

3 Complete these sentences.a) Summer clothes should be _________ (light/dark)

coloured because

____________________________________________________________

b) The inside of a cool bag should be _________(black/white) because _____________________ _________________________________________________________________________

Radiation

1 A cube is filled with hot water. Three sides are painted different colours: black, white, and grey.

a)Which side feels hottest because it radiates heat best? _______________________________b) Which side feels coolest because it radiates heat the worst? ____________________________

2 a) What is the best colour for solar panels? __________. Why? ____________________________________ _________________________________________

b)Solar panels are on roofs and not on a wall because ________________________________________________________________________________

c) The diagram shows an electric heater. What is the best colour for the back plate? ________________ Why? ___________________________________ ________________________________________

3 Complete these sentences.a) Summer clothes should be _________ (light/dark)

coloured because

____________________________________________________________

b) The inside of a cool bag should be _________(black/white) because _____________________ _________________________________________________________________________

solar

panel

solar

panel