Newton's Laws
An object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force.
Newton's First Law
How fast an object is traveling
Speed
If you say,"A bird is going 30mi/hr west." you are stating its _______.
velocity
What is the formula for speed?
distance ÷ time
<------ <------- 28N <------ <------- 60N
The object will move 88N to the left.
It takes less force to accelerate an object with less mass.
Newton's Second Law
Speed of an object in a certain direction
Velocity
If I traveled 100 miles in 2 hours, what was my speed?
50 mi/hour
<------- 75N 150N----->
The object would move 75N to the right.
Every action has an equal and opposite reaction.
Newton's Third Law
Force that keeps things DOWN
Gravity
If I am slowing down in the car, is that acceleration?
YES
Is it easier to stop a moving object that has MORE mass or LESS mass?
It's easier to stop a moving object with LESS mass.
Wearing seat belts to protect passengers when a car stops quickly is an example of which law?
Newton's First Law
The rate at which velocity (direction or speed) changes over time
Acceleration
Turning a corner is an example of acceleration. True or False
True
<------ 35N ---------> 10N
Solve.
25N to the left.
If I am sitting in my chair, gravity pushes down on me. What is the opposite and equal force in this scenario?
The chair pushing UP on me.
An objects ability to stay at rest or stay in motion.
Inertia
Acceleration is the rate at which inertia changes over time. True or False?
If it is false, what is the correct answer?
FALSE - Acceleration is the rate at which VELOCITY changes over time.
60N ------> 45N ------->
Solve. Which direction will the object move?
105N to the right.