Intro to Physics: Force and Motion Flashcards
An accelerated object is one whose ____ is changing and this change can indicate either an increase or decrease in speed.
Velocity
The phrase, “for every action, there is an equal and opposite reaction” is a statement of which of the following?
Newton’s third law of motion
Which of the following laws can be written mathematically as capital F = MA, and establishes the relationship between force, mass and acceleration?
Newton’s second law of motion
Momentum is a measure of the___ of moving body.
Motion
Which of the following does NOT characterize force?
–Point of application
– friction
– magnitude
– direction
Friction
What is the net force acting towards the center of a circular path of an object?
Centripetal
If an applied force on a member tends to pull the member apart, it is said to be in ____.
Tension
Newton’s first law of motion observes that object in motion tends to remain in motion ___.
In a straight line
A ”Newton“ is a unit of ___.
Force
Momentum as a measure of the___ of a moving body.
Motion
How many laws of motion in physics are attributed to Sir Isaac Newton?
3
Some quantities need only a number and a unit. These are termed___.
Scaler qualities
Each and every ___ in the universe exerts a mutual, attractive gravitational force on every other ___ in the universe.
Mass, mass
British physicist ___ developed the basis for the physics field of modern classical mechanics in the 17th century.
Sir Isaac Newton
Which of the following is the net force acting towards the center of a circular path of an object?
– Centrifugal
– inertia
– molecular
– centripetal
Centripetal
