Motion, Forces, And Newton's Laws Of Motion - 2 Question Preview (ID: 58885)


Review Of Motion, Forces, And Newton's Laws Of Motion. TEACHERS: click here for quick copy question ID numbers.

A change in motion is described by _______.
a) inertia
b) speed
c) net force
d) acceleration

Newton's third law of motion states that _______.
a) an object will remain at rest or keep moving in a straight line with constant speed unless a fore acts on it
b) when a force is applied on an object, there is an equal force applied by the object in the opposite direction
c) acceleration is calculated by dividing the force exerted on an object by the mass of the object
d) the force on an object an be found by dividing its mass by its acceleration

Newton's second law of motion states that _______
a) an object will remain at rest or keep moving in a straight line with constant speed unless a force acts on it
b) when a force is applied on an object, there is an equal force applied by the object in the opposite direction
c) acceleration is calculated by dividing the force exerted on an object by the mass of the object
d) the force on an object can be found by dividing its mass by its acceleration

Which measures an object's tendency to resist changing its motion?
a) gravity
b) acceleration
c) inertia
d) mass

Newton's first law of motion states that ______.
a) an object will remain at rest or keep moving with a constant velocity unless a force acts on it
b) acceleration is calculated by dividing the force exerted on an object by the mass of the object
c) when a force acts on an object, its acceleration is in the same direction as the force
d) when a force is applied on an object, there is an equal force applied by the object in the opposite direction

Friction always acts ______ the direction of motion of an object.
a) opposite to
b) perpendicular to
c) in the same direction as
d) at a 45 degree angle to

When balanced forces act on an object, the net force is ______.
a) positive
b) zero
c) negative
d) increased due to friction

What happens when unbalanced forces act on an object?
a) the net force is zero
b) the object speeds up
c) friction becomes greater than the net force
d) the object accelerates

On a speed-time graph in which the line is level, the acceleration is _____.
a) zero
b) negative
c) positive
d) changing

A(n) ________ is a push or a pull.
a) motion
b) acceleration
c) force
d) velocity

The strength of the gravitational force between two objects depends on which of the following?
a) the mass of the larger object
b) the velocities of the objects
c) the orbits of the objects
d) the mass of the objects and the distance between them

When something slows, its acceleration is _______.
a) positivr
b) negative
c) instantaneous
d) constant

Displacement measures the ________ between the starting and stopping points'
a) mass and volume
b) distance and direction
c) distance and speed
d) direction and speed

Which is distance divided by time?
a) speed
b) displacement
c) velocity
d) acceleration

When a car goes around a curve at 20 mph, the ______ changes.
a) speed
b) average speed
c) instantaneous speed
d) velocity

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