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Hi! Today we are going to learn about energy. Our objectives for today is that our students

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at the end of the lesson are able to define energy, describe the two main forms of energy,

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and give examples of the two main forms of energy. But here comes our first question.

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what do you use the word energy for talk to your partner and give at least three

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examples of when you use the word energy when you eat your body breaks the food

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down and gives you energy when you're outside the Sun gives you energy in the

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form of light and heat and the streetlights use electrical energy to

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give us light. Talk to your partner again. Do you know now something else about energy

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you didn't know before? So, what's energy? Wow! Energy is defined as the ability to do work.

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Energy is what makes things move, change and carry out work. You can jump, ride the bike

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and play because of energy. And what are the forms of energy? Well, to be honest, there

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are quite a lot of forms of energy. In this unit, we are going to study up to eight. But

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today, we are going to focus on the main two, kinetic and potential. Look at this picture.

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what can you see in them yet the girl on the left is still she's not moving but the children on the

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right they are moving so the girl who still has potential energy she's not moving she's still

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while the girl the boys the children who are moving they have kinetic energy potential energy

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is store energy, while kinetic energy is moving energy. Let's practice that. Look at the picture.

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Is the ball moving? No, it's still. So, if the ball is still, it's... Yeah, that's right,

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potential energy. Check the bike now. Is the bicycle moving? No, it's at the top of

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a hill, so the bicycle is not moving potential or kinetic. Yeah, that's right, potential too.

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But when the bike starts moving downhill, its potential energy becomes kinetic energy.

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Let's recap. If an object is still or stationary, it has store energy, also called potential energy.

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But if an object is moving, that is, in motion, it has kinetic energy.

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The faster it moves, the more kinetic energy it has.

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Let's play a game.

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Check this picture.

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Kinetic or potential energy?

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Is the arrow moving?

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No, it's not.

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Well done!

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Let's try this new one.

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Is the ball moving?

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Yeah, it's moving, so it must be kinetic.

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Well done!

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What about this other one?

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Is the bicycle in motion?

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Is it moving?

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Yeah, it seems so.

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Kinetic then.

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Yeah!

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And what about this one?

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Is the pack moving or is it still?

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Still, potential then.

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Wow, we're on fire!

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and what about this one is the golf ball moving or still it's still potential

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then yeah and what about the ball is the volleyball moving or still yeah it must

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be moving it's on the earth yeah well done