Forces and Motion Vocab
This word is defined as a push or a pull
What is FORCE
Newtons first law of motion is also known as
What is INERTIA
What is the formula that describes Newton's 2nd law of motion?
What is F=MA
Newton's 3rd law of motion is also known as
What is Action and reaction (for every action there is an opposite and equal reaction)
When you are standing up in a subway
train, and the train suddenly stops, your
body continues to go forward.
What is NEWTON'S 1ST LAW OF MOTION
This is the unit of force
What is Newtons (N)
Newton's first law of motion states that
What is AN OBJECT IN MOTION WILL REMAIN IN MOTION AND AN OBJECT AT REST WILL REMAIN AT REST UNLESS A FORCE ACTS UPON IT.
The rate at which an object changes its velocity is known as
What is ACCELERATIO
True or False: The more friction the slower an object will go
What is TRUE- More friction causes an object to slow down
An ice skater pushes harder with his leg muscles, he begins to move faster
What is NEWTON'S 2ND LAW OF MOTION
All of the forces acting on an object are called
What is NET FORCES
If 2 people are pulling on a rope with a force of 200N, what is the net force?
What is ZERO (0N)
An object with a mass of 5kg that accelerates at 9m/s2 when an unknown force is applied to it. What is the amount of force?
What is 45N
If you are swimming, what is the action and what is the reaction?
What is ACTION=PULLING WATER BACKWARD, REACTION=MOVING FORWARD
When you use poles to push you forward when you ski
What is NEWTON'S 3RD LAW OF MOTION
You can use this to help you notice if you or something has moved
What is REFERENCE POINT
You are pushing a cabinet with a force of 500N and your friend is pulling the cabinet in the same direction with a force of 500N, what is the Net force?
What is 1000N
An object accelerates at 20m/s2 when a force of 5N is applied to it. What is the mass of the object?
What is 0.25kg
True or False: All forces act individually on one another 1 at a time.
What is FALSE- They always act in pairs
A baseball hit with a wooden bat flies further than a baseball hit with a plastic bat
What is NEWTON'S 2ND LAW OF MOTION
The tendency of an object to resist any change in motion is known as
What is INERTIA
You are pulling with a force of 800N and your friend is pulling in the opposite direction with a force of 450N what is the net force?
What is 350N
An object with a mass of 8g has a force of 24 newtons applied to it, what is resulting acceleration of the object?
What is 3m/s2
True or False: An object initially moving at a constant velocity will slow down unless net force is applied.
What is FALSE! -According to Newton's first law, A body continues in its state of rest or motion unless an external force is acted on it. So the velocity of the body can not slow down without external force.
A bookshelf stays in place because of this law of motion
What is NEWTON'S 3RD LAW OF MOTION