Motion
the distance traveled divided by the time it takes is called?
Speed
A force that causes movement or motion is called a ______________________ force.
Unbalanced
you run 60 meters in 20 seconds... what is your speed?
3 m/s
Force is measured in what unit?
Newtons
Force= Mass x Acceleration
An apple has a mass of 8kg and is accelerating at a rate of 3m/s(s), what is the resulting force?
24N
the speed of an object and its direction is called?
Velocity
A force that causes no movement or at a constant velocity is called a __________________ force.
Balanced Force
You ride 32 miles in 4 hours on your bicycle.. what is your speed?
8 miles/hr
A line that begins with a dot and ends with an arrow that shows a force is called a?
Vector
On an acceleration graph, a line that is decreasing from left to right shows what kind of acceleration?
Negative Acceleration
Double Points: The change in speed or direction is called?
Acceleration
This force is the pull of all objects toward one another.
Gravity Double Points opportunity: What is the acceleration of gravity?
George pushes a box with a force of 16N to the left. Bobby pushes the same box from the opposite side with a force of 10 N to the right. What will be the result?
The box will move 6 N to the left
The length of a vector shows the _______________ or the strength of the force.
Magnitude
The change in an objects position is called?
Motion
the tendency of an object to resist any change in it's motion
Inertia
The force that works perpendicular to gravity that keeps objects on a surface.
Normal Force
A boy pulls a wagon with a force of 6 N east as another boy pushes it with a force of 4 N east. What is the net force and direction?
10 N East
What would the net force of an object showing no motion?
Net Force = 0
What force causes a person skating on ice to slow down and eventually stop?
Friction
He published a book in 1687 outlining the 3 laws of motion.
Sir Isaac Newton
When an object is at rest there are no forces acting on the object. True or False? Explain why?
False. The forces of gravity and normal forces are acting on objects that are at rest.
A car traveling at 15 m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. What is it’s acceleration?
-1.5 m/s/s
An object in motion will remain in motion unless an outside force acts on it or an object at rest will remain at rest unless an outside force acts on it. This is which of Newton's Law's?
Newton's 1st Law
A horizontal line on an acceleration graph can show 2 different things? What are they?
1. No velocity (no motion)
2. Constant Velocity