Sir Isaac Newton
The gravitational force on an object is measured in these
Newtons
Which formula is used to calculate momentum
mass x velocity
Average speed is
Time divided by distance
When you slow down, it is considered a ________ acceleration.
What is negative?
The gravitational force on an object is called?
Weight
What is static friction?
something that is sitting there-
State Newton's First Law
An object in motion stays in motion or an object at rest stays at rest until a force acts on it
Vf-Vi
T
or Change in velocity divided by time
What is constant speed
Speed that doesn't vary
What is positive acceleration?
When you speed up
Weight is scientifically measured in what unit?
Newtons
What is fluid friction
Something that is going through a gas or liquid
State Newton's Second Law
A net force acting on an object causes it to accelerate in the direction of the force or force = mass x acceleration
What is the formula used to figure speed or average speed
Distance divided by time
Instantaneous speed is
Speed at any given time
If I am jogging at a constant 9 mph and turn the corner, am I accelerating? Why or why not
Yes, because there is a change in direction
Gravity is defined as
The downward force exerted on an object falling through the air
What is sliding friction
Two surfaces sliding past each other
State Newton's Third Law
For every action or force there is an equal but opposite action or force
What is the formula used to figure force
Mass x acceleration
What is speed defined as
The distance an object travels per unit time
If a force is applied to an object, does it accelerate?
Yes. Its speed and direction could/would change
The two things that the amount of gravity two objects has between them is
Mass and distance
What is rolling friction
A round object and the ground
Which of Newton's Laws can also be called the law of Inertia?
Newton's First Law
What works against the formula mass x acceleration
force
If a vehicle travels 450 miles in 9 hours, what is its average speed?
50mph
Is speed part of acceleration?
Yes-acceleration is the change of velocity which has to do with speed
Gravity will pull a heavier object to the earth more quickly than a lighter one. True or false
False
The bumps on surfaces that cause friction are know as
microwelds