Stop Faking It!. Force & Motion. Newton’s First Law of Motion. Objects in motion tend to stay in motion until something “hits” them Objects at rest tend to stay at rest unless something “hits” them Let’s test it - Use a ball and try for yourself!. You may have noticed. . . .
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Force & Motion
Things tend to keep on doing whatever they’re doing until something else “hits” them.
Vectors-arrows that can show velocity, magnitude (size), and direction.
Average speed is the what you get from s=d/t.
Instantaneous speed is your speed at a given instance in time.
Acceleration is a change in velocity (i.e.. Change in direction or speed or both) For example, a car speeding up(which is why they call it an accelerator on the car)
Another equation for you: acceleration=change in velocity/time for the change
Your body can detect changes in acceleration.More info related to speed
The earth’s pull (or force) on things
(it is also a force that exists between all objects)
Let’s test it.
Drop two things.
They should have hit the ground at about the same time
When gravity is the only force applied, all objects have the same acceleration
If you change gravity, the mass would stay the same.
Weight: The force that gravity exerts on an object
If you change gravity, the weight would also change.Mass vs. Weight
Because of gravity, you have a stronger attraction to things closer to you. You’ll be more attracted to something located on Earth than something located on Jupiter.
No, because weight is the force of Earth’s gravity and under normal conditions you are not ever totally away from that force.
Everything exerts some type of gravitational force on everything else.
One example: The gravitational forces between the moon and the waters found on Earth are responsible for the things we call Tides!