Newton's First Law
You are thrown off the front of a 4 wheeler when it runs into a fence. Why?
Because the 4 wheeler was acted on by another force.
The baseball went farther than the basketball when your classmate hit them with an aluminum bat. Why?
Because the baseball needs less force to accelerate
The slingshot was pulled back and the rock propelled forward. Why?
Because for every action there is an equal and opposite reaction.
What type of friction occurs when two solid objects move past each other?
kinetic friction
What will happen to the people on a bus if the bus stops suddenly?
They will fly forward.
A kickball continues to roll until it hits the fence.
Because an object in motion will stay in motion
A car is easier to push than a bus. Why?
Because the car needs less force to accelerate. It also has less mass.
You run into your friend while skating and you run into your friend. Do you get hit back or does your friend?
Both of You!
What type of friction keeps two solid objects from moving past each other?
Static friction
If someone is pushing with 50N of force to the right and the other person is pushing with 10N of force to the left, which way will the box go?
To the right, because there is more force pushing that way.
if you roll down a hill and don't stop your self will you keep going or will you stop
You will keep going
An object will _________________ in the direction that you push it.
What is accelerate
Newton's 3rd law states this, "For ...
What is "For every action there is an equal and opposite reaction."
What is something that is used to reduce friction
lubricant
If 20N of force are pushing to the left and 20N of force are pushing to the right, which way will the box move?
Neither way. It is a balanced force
If a plane is in motion will it stay in motion?
Yes because unless acted on by another force objects stay in motion.
If someone pushes you down the slide what will be faster,
Them pushing you
You pushing yourself
Them pushing you
If a car hits a bus who will have the greater reaction
Because of the third law both the bus and the car have equal and opposite reactions. But the bus would be in better shape then the car.
If I need to drive home should i do it with tires or with just rims.
Tires because they increase the friction and move you foward.
a bike leaning against a pole
This is balanced because the bike isn't falling over
If you throw an apple up while riding in a bus will the apple fall back to you?
Yes because you and the apple are traveling at the same speed.
If a 18 wheeler races a car who will accelerate faster?
The car because it has less mass.
If a Football player hits another player that weighs less then him who has reaction?
Because of the third law they both have equal and opposite reactions but the little football player will go further
If I have a 1000 pound box and I need to move it what should I do to make moving it easier.
Decrease the surface area
An 18 wheeler with an empty trailer.
It is unbalanced because the truck weighs more then the empty trailer.