Newtons Laws 2
Which law is this? An object in motion stays in motion, an object at rest stays at rest until acted on by an outside force.
Newton's 1st Law
For every action, there is an equal and ______ reaction.
Opposite
What Law is Action / Reaction?
Newton's 3rd Law
What does a negative slope indicate on a distance time graph?
It is moving towards the start/beginning/origin.
A box is being pushed to the right across the floor. What force is acting on it on the floor?
Friction
Which law explains why a balloon flies around the room when you let it go without tying it.
Newton's 3rd Law
Air pushes out of the balloon, and the air pushes the balloon forward with equal amount of force.
The term used for the resistance of an object to changes in its state of motion, as described in Newton’s First Law.
The more mass you have, the more _________.
Inertia
When an object is in motion it has _______________ forces.
Unbalanced?
A bowling ball collides with a set of bowling pins (at rest) with a force of 15N. What is the force the pins exert on the bowling ball?
Which law is this?
Newton's 3rd Law.
The pins will exert 15N on back on the bowling ball.
Every action has an equal and oppostie reaction.
On a distance time graph, how can you know when two objects are moving at the same speed but in opposite direction?
They have to have the same slope(same steepness) but one is positive, and one is negative
In Newton's Second Law, if mass is constant and force increases, _____________ must also increase.
Acceleration
A baseball bat hits a ball. Besides flying through the air, what does the ball do? Think forces on both objects.
Hits the bat with equal and opposite force
If you want to increase the acceleration of a baseball when you throw it, what must you increase to make this happen?
Force
What is the Net Force in a tug of war game, team A is pulling with 50N to the left and Team B is pulling with 20N to the right.
50-20N =30N to the left.
Subtract because they are going oppostite directions.
If they are going the same direction, add them.
What force stops a ball that is thrown in the air from flying up forever?
Gravity
If you have a cart with 200g on a flat surface and a 300g cart on a flat surface, which one will have more acceleration? Why?
The 200g cart will go faster bc it has less mass. Less mass= more acceleration while on a flat surface
Ex: camry vs tundra
A net force of zero results in this type of motion, according to Newton’s First Law.
Constant speed or no motion
If a heavier object needs more force to move than a lighter one, you’re seeing this law in action.
Newton’s Second Law (F = ma)
If you have a cart with 200g going DOWN A HILL and a 300g cart going DOWN A HILL, which one will have more acceleration? Why?
The one with more mass will go faster because the force of gravity is pulling it, resulting in a faster speed.