Newton's second laws
The greater the force results in _______________ the acceleration
greater
a push or pull that one body exerts on another
force
For every action there is an equal and opposite reaction force
Newton's third law of motion
To resist a change in motion
Inertia
what force opposes the motion of objects that touch as they pass by each other
friction
Mass x acceleration is the formula for....
Force
Hand pushes on wall & _________
wall pushes back on hand
An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force
Newton's First Law
Wearing a seat belt in a car accident is an example of what law
Newton's 1st Law
A flip flop has ______ friction compared to a hiking boot.
less
How many laws of motion did Newton write?
3
When an unbalanced force acts on an object; the object _____________
accelerates
The acceleration of an object is directly proportional to the net force acting on it
Newton's 2nd law
Balanced forces are when the forces on both sides are ________.
equal
When a cup is on a table applying 4 Newtons of force, the table is applying ______ of force to the cup.
4 Newtons
If the mass decreases, the acceleration _________
increases
The sum of all forces acting on an object equals the
net force
What centuries was Newton alive in? 14-1500s, 15-1600s, 16-1700s, or 17-1800s?
16-1700's
An object with a lot of inertia is likely to do what
continue its motion
Which has more inertia- an elephant or Mr. Smith?
the elephant
What is the acceleration of an object if the object has a mass of 20 grams & an applied force of 40 N? (F=MA)
2 m/s2
The net force of zero is a
balanced force
On the moon, your ________ decreases, but your ______ remains the same.
weight
mass
Solve:
131N -> /----- \ <- 95N
17N -> \____/ <- 87N
<- 34N (left)
Calculate the force of an object that has a mass of 40 kg & has an acceleration of 40 m/s2
1600 N