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Level 46

Newton's First & Second Laws


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Define Inertia
An object's reluctance to change in motion
Inerita Law
An object at rest styas at rest and an object in motion stays in motion (at a constant velocity) until acted upon by an outside force
Define Force
a force is a push or pull motion
What is Net Force
The total of all the forces acting in all directions on an object
Newton's first law
An object at rest remain and an object in motion remains in motion UNLESS it experiences an unbalanced force. Also called the Law of Inertia.
Newton's second law
Acceleration is produced when a force acts on a mass, the greater the mass, the more force is required to accelerate the object.
What is centrifugal force?
Centrifugal means fleeing from center however it is a fake force and is just an extension of newton's 1st law
What is Centripetal force?
A force that keeps an object in a circular path.
What is artificial Gravity?
it is the changing (increase or decrease) of apparent gravity by way of artificial means such as in space (but also on earth). It can be achieved by the use of some different forces. Such as centripetal force.
How do both centripetal and centrifugal forces work? Provide examples.
Centrifugal force is the force of the object trying to get out of the circle. The centripetal force keeps the objects in the circle. When using newtons waiter the string and platform keep the w…
Is it possible to have artificial gravity? How can you demonstrate this?
It is possible to have artificial gravity. You can create artificial gravity with a centripetal force
Why is Newton's first law sometimes called the law of inertia?
It is sometimes called the law of inertia because part of newton's law is that an object at rest stays at rest, and then inertia is an object's reluctance to move.
What characteristic of an object determines its inertia?
It's mass, a heavier object is harder to move.
YOur back presses against the car because of inertia you do not move right away.
Use what you know about inertia to explain why you feel pressed back into the seat of a car when it accelerates.
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State Newton's second law of motion into your own words.
You can double the mass of the object
How can you keep an object's acceleration the same if the force acting on the object were doubled?
(acceleration is new speed-origonal over time
Be able to solve problems using f=ma (force = mass x acceleration) and be able to arrange it so that you can solve it for force, mass, or acceleration if you are given the other two measurements.
(conversions) think of a random conversion problem
Blast from the past: remember those pesky metric conversions, you are not allowed to forget them! You will need them for this quiz.