Force
Friction
Newton's Laws
Newton's Laws 2
Odds & Ends
100
What is a force?
A push or a pull
100
What is friction?
A force that opposes motion
100
This Law gives you the equation F=ma
Newton's 2nd Law
100
Order the objects from least to greatest inertia.
bicycle notebook whale refrigerator
notebook, bicycle, refrigerator, whale
100
What is the net force?
What is 9N right?
200
What is the units for force?
Newtons
200
What surface would have the least amount of friction?
grass, concrete, ice, gym floor
ice
200
Which Law states: An object in motion will stay in motion and an object will stay at rest will stay at rest unless acted on by an unbalanced force.
Newton's First Law
200
Which law is represented by: a policeman fires their gun, the gun pushes back on the policeman.
Newton's 3rd Law
200
What force is needed to accelerate a 25 kg wheelbarrow at a rate of 2 m/s^2?
F=m*a
F=25*2
F=50 N
300
What does this picture represent?
What are balanced forces?
300
A child rides a wagon down a hill. Eventually, the wagon comes to a stop. Which is most responsible for causing the wagon to stop?
gravity, friction, momentum
friction
300
A rocket taking off is an example of which of Newton's laws?
Newton's 3rd Law
300
For every action there is an ____________ and _____________ reaction.
For every action there is an EQUAL and OPPOSITE reaction.
300
Two forces on an object are in the same direction. How do we calculate the resultant force?
add them together
400
The sum of all forces on an object is called the ___________.
net force
400
An icy road would have ________ friction than a dry concrete road.
less
400
Which law is represented by: A passenger van suddenly stops, causing the passengers to move forward.
Newton's 1st Law
400
How will acceleration change if these objects are pushed with the same force?
The more massive object will accelerate slower.
400
A large truck hits a black fly while driving down the road. Which one exerts a larger force
They exert the same force on each other
500
What does this picture represent, when forces are NOT equal and opposite in direction?
What are unbalanced forces?
500
Friction force always acts in what direction?
The opposite direction of the force
500
This Law is also know as the Law of Inertia
Newton's 1st Law
500
During a game of tug of war, the red team pulls with a force of 60 N Left while the blue team pulls with a force of 55 N Right.
What is the net force and who wins?
5N Left
500
Which law is represented by: a slingshot if fired and the stone is pushed through the air and accelerates in the direction of the force.
Newton's 2nd Law