Uploaded by Sock Hwa Yong

Energy transformations - circus cards

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1 Tin can
You will need:
• A tin can with stones inside.
Instructions:
• Shake the can hard – what happens?
• Describe the energy transformations that take place
When I shook the tin can it made a _______.
________ energy was transformed into ________ energy.
2 Pendulum
You will need:
• A clamp stand
• A pendulum tied to the clamp stand
Instructions:
• Lift up the pendulum and let it go – what happens?
• Describe the energy transformations that take place
When I lifted the pendulum it gained ___________________
energy.
When I let it go this changed to ________ energy, but as the
pendulum swung back up it gained back ___________________
energy.
3 Spiral
You will need:
• Spiral
• Candle
Instructions:
• Light the candle
• Carefully hold the spiral above the heat – what happens?
• Describe the energy transformations that take place
When I held the spiral above the candle it __________.
The ________ energy of the candle was turned into ________
energy and then into ________ energy by the spiral.
4 Spring
You will need:
• Clamp stand
• Spring
• 100g mass
Instructions:
• Set up the spring on the clamp stand as shown
• Carefully hang the mass from the spring
• Pull down gently and let go – what happens?
• Describe the energy transformations that take place
When I pulled the spring down it gained __________ energy.
When I let go this changed to ________ energy , but when the
spring stopped at the bottom it had gained back its ________
energy.
5 Lightbulb
You will need:
• Battery
• Lightbulb
• Switch
Instructions:
• Carefully connect the circuit
• Press the switch to turn the bulb on – what happens?
• Describe the energy transformations that take place
__________ energy in the battery was changed to __________
energy in the wires and then into __________ energy in the
bulb.
6 Ball in sand
You will need:
• Tray of sand
• Ball
Instructions:
• Drop the ball into the sand – what happens?
• Describe the energy transformations that take place
When I lifted the ball it gained ___________________ energy.
When I let it go this changed to ________ energy.
7 Human jogging
You will need:
• You!
Instructions:
• Jog on the spot – what happens?
• Describe the energy transformations that take place
When I ate breakfast this morning I gained __________energy
from my food.
When I started to jog this energy changed to ________ energy
and also ________ energy when I had been doing it for a few
minutes.
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