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Which one is a source of LIGHT?
Lamp
Table
Cup
Heater
An example of a device that gives heat and light energy is...
heater
Sun
fan
board
Unit of energy is
kJ or Kcal
Light travels in ............. lines
straight
curved
Energy can be destroyed and created.
True
False
We take energy from
Sun
food
batteries
books
The lamp is brighter than the Sun
True
False
The lamp is dimmer than the Sun
True
False
When you move far away the light sources, the light becomes
brighter
dimmer
Which one is a natural light source?
TV
Lava
Street light
Lamp
Which one is an artificial light source?
LED light
Glow-worm
Firefly
The Sun
Can you survive without energy?
No
Yes
Can you run a marathon by eating only one chocolate bar?
No, because 1000 kJ < 7000 kJ
Can you play basletball for 20 minutes by eating ONE burger?
Yes, because 1500 kJ > 1000 kJ
The energy from the Sun can be tranferred to ...........
heat and light
light and sound
heat and sound
sound and movement
We need ________ to run, jump, and think.
tests
water
books
energy
