Newton's Laws of Motion, and a lots of examples!

Newton’s Laws of Moving Objects

First Law:

 "An object will stay at rest or continue at a constant velocity unless acted upon by an external unbalanced force"

example:

• Blood will rush from your head to your feet when quickly stopping on a descending elevator
• you can dispense the ketchup from it’s bottle
• You will fall off your bicycle when you hit a rock which abruptly stop the bicycle
• An object will fall from a car’s dashboard when you’re accelerating your car from stationary position
• A ball that you push on the floor will eventually stops because of friction
• A car will drift if it turn left or right on a wet road

Second law:

“The acceleration of an object depends on the net force acting upon the object and the mass of the object”

examples:

• It’s easier to push a shopping cart when it’s empty than when it’s full
• Your friend is on a skateboard, a little push, he will accelerate a bit, a big push and he will move even faster
• your friend is in a car, a little push, the car won’t move, a big push the car will barely move, all your friends push the car, the car will move

Third law:

“For every action there is an equal force but in opposite direction”

• A jet plane will move forward if the jet create enough force
• Rowing a boat oars to move it forward
• You don’t fall to the ground when you’re sitting on a chair
• You will get hurt if you punch a wall
• A basketball will bounce back if you throw it to the floor
• A ball hanging by a string to the ceiling, the ball pulls the string down, the string pulls the ball up, the string pulls the ceiling ceiling down, the ceiling pulls the string up
• The earth pulls you to the ground, the ground pushes you back with equal force.