Motion
The rate of change of an object’s velocity; can be speeding up, slowing down, or changing direction
Acceleration
A push or a pull on an object
Force
States that an object’s acceleration is equal to the net force on the object divided by its mass
Newton’s second law of motion
If a person pushes a box with a force of 15 newtons right and a person pushes left with a force of 30 newtons what is the net force?
15 newtons to the left
True or False: Acceleration is equal to the net force on the object divided by its mass
True
The distance and direction that an object is from a reference point
Position
A unit used to measure the strength of a force
newton
States that an object at rest stays at rest, and an object in motion stays in motion
Newton’s first law of motion
If a person pushes a box with a force of 15 newtons right and a person pushes right with a force of 15 newtons what is the net force?
30 newtons to the right
What is the acceleration of an 12 kg object that has a force of 60 Newtons.
5 m/s ^ 2
An amount of something measured per unit of something else
Rate
Forces that have a net force equal to 0 N
Balanced Forces
States that when an object exerts a force on a second object, the second object exerts a force on the first object with equal strength
Newton’s third law of motion
If a person pushes a box with a force of 492 newtons right and a person pushes left with a force of 378 newtons what is the net force?
114 newtons right
True of False: Acceleration equals mass times force.
False
Rate that describes how far an object moves over time
Speed
The sum of all forces acting on an object
Net Force
Which of Newton's Laws states: That for every action there is an equal and opposite reaction.
Newton’s third law of motion
If a person pushes a box with a force of 1000 newtons right and a person pushes left with a force of 1000 newtons what is the net force?
0 newtons
Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station, and he makes the car go 0.5 m/s/s. Using Newton's Second Law, you can compute how much force Mike is applying to the car
500 newtons
An object’s speed and direction of motion
Velocity
A force that opposes motion between two surfaces that are touching
Friction
True of False: Force equals mass times acceleration.
True
The net force on an object is 23 newtons right. There is a force to the right of 15 newtons and a force to the left of 8 newtons, what additional force to the right would have to exist?
16 newtons
Jose and his scooter have a total mass of 50 kilograms. Assume that the net force acting on Jose and the skateboard is 25 Newtons. What is the acceleration?
0.5 N or 1/2 N