First Law
Second Law
Third Law
Forces
Free Body Diagrams
100
If a child is pushing a car at a constant speed, then the forces acting on the car are
What is balanced?
100
The formula associated with N2L
What is F=ma?
100
When the girl applies force to push off the wall, amount of force exerted by the wall on her is
What is equal/the same?
100
A type of force that opposes the motion of an object
What is friction?
100
In a free body diagram, this characteristic of an arrow indicates the size of a force
What is length?
200
If an object is accelerating or deaccelerating, the forces acting on it can be described as...
What is unbalanced?
200
An object has a mass of 100kg and an acceleration of 10m/s2. The value of the force on the object is equal to this number.
What is 1000N?
200
In the photo, the jetpack pushes water downward, causing the user to move in this direction
What is upwards?
200
The force exerted by a surface on an object that prevents it from falling through
What is normal force?
200
In this FBD, the speed of the object is
What is changing?
300
A requirement to change the motion of an object
What is unbalanced force?
300
Four objects have equal mass, yet they all have different accelerations. The object experiencing the smallest force also has the smallest...
What is acceleration?
300
A man pushes on a wall with a force of 250N. The force exerted by the wall on the man has this value.
What is 250N?
300
This force does not exist in space.
What is air resistance?
300
The speed of the object in this FBD must be
What is constant?
400
The tendency of an object to resist a change in its motion is referred to as this.
What is inertia?
400
Two carts of unequal masses begin at rest, are rolled across a table, and reach the other end at the same time. Cart X has twice the mass as Cart Y. This cart experiences a greater force.
What is Cart X?
400
Kenny winds up his yo-yo clockwise. When he lets it fall back down, this is the direction that the string will unwind.
What is counterclockwise?
400
This force can be generated by stretching a rope, string, cable, etc.
What is tension?
400
The object in the FBD experiences a net force in this direction.
What is left?
500
An object in motion that is experiencing no friction would continue to move for this length of time.
What is forever?
500
Two train cars are connected to each other and accelerating at a speed of 2m/s2 due to an applied force of 15,000N. Car A has 4 times the mass of car B. This is the mass of Car A:
What is 6000kg?
F=ma
15000=(4m+m)2
m=1500kg, 4m=6000kg
500
An equal and opposite force that opposes normal force
What is gravity?
500
Action-reaction pairs have these two characteristics
What are equal and opposite?
500
The net force in the FBD shown
What is 0N?