Forces
The interaction between two objects resulting in a push or pull is known as a _________.
Force
Inertia
A ball sitting in place on the ground at recess shows which law of motion? What does the law state?
Newton's 1st Law
objects in motion stay in motion and objects at rest stay at rest until acted upon by an outside force
What is the force of one surface rubbing against another surface?
Friction
The overall force acting on an object when all the forces are combined is _______________.
Net force
Which law do you see when your head hits the back of your headrest as your car starts moving quickly?
Newton's First Law
What is the mathematical formula to calculate force is? And which law is it?
f=m*a
Newton's 2nd Law
What is the net force of the picture on the white board?
15N <--- O ---> 37N
37 - 15 = 22N to the right
Which type of friction would you see in a goldfish swimming in it's tank?
Fluid Friction
If an object has forces acting upon it that are unbalanced, the object will?
Move
According to Newton’s 2nd Law, what happens to acceleration of an object if you increase the mass but keep the amount of force the same?
The acceleration will decrease.
According to which law, every force has an equal and opposite force?
Newton's 3rd Law
How much force would it take to move a 50 kg chair and make it accelerate to 5m/s2?
250 N
What type of friction do you see between the wheel and the ground when a person is pedaling their bike up a mountain?
Rolling Friction
The net force of an object will be zero when?
The object is not moving, balanced Or when all of the forces acting upon it are EQUAL and in OPPOSITE direction.
According to Newton’s 2nd Law, what happens to the mass if you increase the force but keep the acceleration the same on an object?
The mass will also increase.
You want to move an object that is 10 kg and another that is 20 kg at the same acceleration, how can you achieve this?
You push the 20kg object with 2x the amount of force as the 10kg object.
What is the mass of an object that requires a force of 30 N to accelerate at 5m/s2?
6 kilograms (kg)
What type of friction do you see between your pencil and the paper when you write?
Sliding Friction
What will happen to an object when the forces acting on it are balanced?
Not move
If an object is in motion and NO other forces act upon it, what will happen to that object?
The object will stay in motion
Which has the greatest inertia?
Golf ball traveling 100 mph
An arrow shot from a bow
An airplane taking off
What is apply twice as much force to the 20 kg object.
If a 3 kg object is being pushed with 60 Newtons of force, what is the object’s acceleration?
20 m/s2
What type of friction do you see between you and your chair right now?
Static friction