Motion
What is distance?
The total length traveled
What are the 5 common forces that act on an object? What phrase helps us remember them?
Gravity, Tension, Normal, Applied, Friction
Get To kNow All Forces
Newtons first law is also called what?
Law of Inertia
5N up, 3N up, 2 N down
6 N down
A 50 kg skateboarder accelerates at 3 m/s2 down a ramp.
What is the net force acting on the skateboarder?
150 N
What is speed?
THE DISTANCE TRAVELED DIVIDED BY TIME
What question do you ask to see if Gravitational Force is on an object?
Is it on or near a planet?
Which Newtons Law is it?
The acceleration of an object is equal to the net force applied to the object divided by the objects mass
2
3 N up, 2 N down, 1 N down, 4 N left
4 N left
A 7 N force pushes a small block and causes it to accelerate at 2 m/s2.
What is the mass of the block?
3.5 kg
What is velocity?
THE SPEED AND DIRECTION TRAVELED
What question do you ask if Normal Force is on an object?
Is it touching anything
Which Newtons Law is it?
The tendency of an object to resist a change in motion
1
8 N right, 2 N left
6 N right
A 35 kg child jumps off a diving board and accelerates downward at 10 m/s2.
What is the net force on the person as they fall?
350 N
What is a Force?
a push or pull that changes an object's motion
What question do you ask if Tension is on an object?
Are there any ropes or strings?
Which Newtons Law is it?
When an object exerts a force on a second object, the second object exerts an equal force in the opposite direction
3
3 N up, 4 N left
A 5 kg toy rocket experiences a thrust of 80 N.
What is the rocket’s acceleration?
18 m/s2
Can acceleration be negative?
Yes
What question do you ask if Friction is on an object?
Is it sliding or trying to slide?
What is the equation form of Newton's Second Law?
sum F = ma
4 N right, 2 N right, 11 N down, 3 N up
10 N down and right
A small cart accelerates at 6 m/s2 when a net force of 12 N is applied.
Find the mass of the cart.
2 kg