Vocabulary
Newton's First Law, Mass & Weight
FBDs & Newton's 2nd Law
Elevator Problems
Forced Motion
100
This is the force associated with the pulling of a string, rope, or chain. It is also the feeling in a room during a test.
What is tension?
100
This is the equation for the weight force on Earth for an object of mass m.
What is F_G=mg or F_G=m(9.8 m/s^2)
100
A 20 kg block accelerates at 5.0 m/s2. The total net force on this block is ....
What is 100 N?
100
If a 70 kg person has an apparent weight of 686 inside an elevator, the elevator is accelerating at ...
What is 0 m/s2?
100
The puck is moving to the left at constant velocity, and no horizontal forces are applied to it.
What is "Continues to the left at the same velocity?"
200
This is the force that opposes the motion of a solid object through a fluid.
What is drag?
200
The weight of a 100 kg mass.
What is 980 N?
200
A 150 N net-force is applied to an object. The object accelerates at 75 m/s2. The objects mass is ....
What is 2.0 N?
200
A 70 kg person has an apparent weight of 896 N while inside an elevator. The elevator is accelerating at ...
What is 3.0 m/s2
200
A puck is moving to the right on a frictionless surface, and it experiences a constant force to the right.
What is speeds up to the right?
300
This is the SI unit of force. Named for someone named Issac
What is a Newton?
300
The mass of a 500 N object.
What is 51 kg?
300
A 100 N force is applied to an object. The object experiences a 20 N frictional force. The object accelerates at 4.0 m/s2. The object's mass is ...
What is 20 kg?
300
A 70 kg person has an apparent weight of 336 while in an elevator. The elevator is accelerating at ...
What is -5.00 m/s2?
300
A puck is moving to the east on a frictionless surface and experiences a constant force in a to the south.
What is "The puck will curve to the south?"
400
This is the force that pushes between two surfaces
What is a normal force?
400
Suppose a bowling ball is sitting on the back of a flat-bed-truck, which is at rest. The truck then rapidly accelerates. What happens to the bowing ball?
What is "roll off the back of the truck?"
400
This free body diagram shows all the forces exerted on a 20 kg object. The object's acceleration is ...
What is 20 m/s2?
400
A 95 kg person stands on a bathroom scale inside an elevator. The scale reads force in Newtons. The elevator is acceleration up at 3.0 m/s2. The scale reads ...
What is 1,216 Newtons?
400
A puck is moving North on a frictionless surface. It experiences a constant force to the South.
What is, "The puck slows down
The puck stops for a moment
The puck speeds up toward the South?"
500
This is the tendency of an object to resist changes in its motion
What is inertia?
500
There is an object on a far off planet with a weight of 500N and a mass of 100 kg. The acceleration due to gravity of that planet is...
What is 5 m/s^2
500
A 55.0 kg ice skaters pushes against the wall with a force of 110 N. His resulting acceleration is ...
What is -2.00 m/s2?
500
A 95 kg person stands on a bathroom scale inside an elevator. The scale reads force in Newtons. The elevator is acceleration down at 6.0 m/s2. The scale reads ...
What is -361 Newtons or 361 Newtons downward?
500
The puck is moving South at a constant velocity on a frictionless surface. The puck experiences a kick (momentary force) to the East. After the kick, the puck will be moving ...
What is "Southeast in a straight line?"