Newton's laws of motion in real life
Storyboard Text
- Newtons 1st Law: Inertia - An object at motion will stay in motion unless acted on by an unbalanced force. An object at rest will stay at rest unless acted on by an unbalanced force.
- The ball on the floor won't move on a flat surface if there was no wind, gravity, or other forces that cause movement.
- at rest - on the floor
- Now gravity is pulling the ball down. It will bounce but that's explained with another law.
- in motion - in the air
- Newtons 2nd Law: The acceleration of an object depends on the mass of an object and the amount of force applied.
- When the two balls are thrown, it takes more energy to make the heavy ball move than the hollow light one.
- light
- heavy
- That's 4 times more energy!
- To make the heavy ball accelerate at 5 m/s2, you need 10 Newtons of energy.
- To make the hollow ball fly 5 m/s2, you need 2.5 Newtons of energy.
- Newtons 3rd Law: Whenever an object exerts a force on a second object, the second object exerts an equal and opposite force on the first object. For every action, there is an equal but opposite force. Every force has an opposite force.
- Gravity
- When the ball is pulled downwards by gravity, the ground pushes back against the ball and the ball is sent upwards again, some of the energy is lost through sound and heat so eventually, it will stop.
- Opposing force
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