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Newton's Laws

Newton's Laws of Motion

QuestionAnswer
Who described the 3 Laws of Motion? Isaac Newton
According to which law of motion is the action force equal to the reaction force? 3rd
What is the tendency of an object to keep moving in a straight line? Inertia
The greatest speed reached by a falling object is called? Terminal Velocity
What is the acceleration due to gravity on a falling object ? (# value) 9.8 m/s/s
What is the path taken by an object dropped from a plane? Curved Path
The amount of momentum an object has depends on what 2 things? Mass and Velocity
What do we call the upward frictional force exerted on an object falling through the air? Air resistance
When an object moves in a circular path, why does it accelerate toward the center? Centripetal Force
How does weightlessness change the MASS of an object? It does NOT change the mass
What is the escape velocity on Earth? 40,000 km/hr
Why does a feather fall more slowly than a brick on Earth? Air resistance
Which of Newton's Laws states that a force is needed to change the objects speed or direction? First Law
The relationship between force, mass and acceleration is explained in which law? Second Law
What are the units for FORCE? Newtons
What are the units for Acceleration? m/s/s
What are the units for SPEED? m/s
What are the units for Mass? Kg
What are the units for Velocity? m/s
What are the units for TIME? Seconds
What is Newtons First Law? Inertia
A ball thrown across the field is an example of what type of motion? Projectile
Weight is a measure of what force? Gravity
The velocity given to a ball by a pitcher is ___ Velocity Horizontal
The velocity exerted on the ball by GRAVITY is ___ Velocity. Vertical
Created by: chamberlin819