Units
What is the unit used of measure to express weight ___?___.
Newton
What is the common word we use to describe the force of gravity on an object?.
Weight
The amount of force it takes to accelerate a mass is which of Newton's laws?
2nd
The amount of gravitational force between two objects depends on what two factors?
Mass and distance between them.
Which of the following factors affect the amount of friction between two objects?
Texture and Pressure
What is the unit of measure used to express velocity ___?___.
m/s
Newton’s 1st law of motion is also called the law of ___?___.
Inertia
For every action there is an equal and opposite reaction is which of Newton’s laws of motion?
3rd
What never changes regardless of where (in the universe) an object is located?
Mass
Air resistance is a type of what kind of friction ________________?
Fluid
What is the unit of measure used to express acceleration ___?___.
m/s2
The force that opposes the direction of motion for an object as it slides over a surface is _______________________?
Sliding friction
If the equation for momentum is "P = mv," what is the momentum of an object which has a mass of 20 kg and a velocity of 1.4 m/s?
28 kgm/s
At what rate does gravity cause falling objects to accelerate on earth?
9.8 m/s2
What is the correct equation for Newton's second law of motion?
F=ma
What is the unit used for momentum (P)?
kgm/s
The force that opposes the motion of an object that is stationary and not moving is _______________________?
Static friction
What is the mass of an object that has a momentum of 40 kgm/s and a velocity of 2.8 m/s?
14.3 kg
The highest velocity that can be reached by a falling object is ________________?
Terminal velocity
If centripetal force is no longer applied to an object moving in a circle, the object will _______________________________?
Continue moving in a straight line