Forces Question Preview (ID: 34922)


Chapter Test Review. TEACHERS: click here for quick copy question ID numbers.

The total momentum of any group of objects remains the same unless an outside ______________ acts on the objects.
a) gravity
b) force
c) friction
d) acceleration

The momentum of an object depends on its mass and __________________
a) speed
b) momentum
c) acceleration
d) velocity

Weight is the measure of the force of _____________ on an object.
a) force
b) friction
c) gravity
d) velocity

Air rushing against an airplane is an example of _____________ friction
a) fluid
b) sliding
c) static
d) rolling

A Newton is a unit of ______________________
a) force
b) gravity
c) velocity
d) fluid

The momentum of a 1400 kg car traveling at a velocity 10 m/s is
a) 14,000 N
b) 14,000 kg*m/s
c) 140 N
d) 14 m/s2

Friction acts in a direction ________________ to the direction of an object's motion
a) unrelated
b) equal
c) perpendicular
d) opposite

Unless an object at rest is acted upon by a force, it stays at rest due to its
a) inertia
b) matter
c) friction
d) gravity

A 50-kg ball is accelerating 100 m/s2 by a force of
a) 500 N
b) 50 N
c) 5000 N
d) 0.50 N

The amount of matter in an object is called its
a) weight
b) mass
c) force
d) inertia

A(n) _________________ can cause an object's motion to change
a) unbalanced force
b) balanced force
c) weight
d) inertia

An object in free fall ___________________ until it reaches terminal velocity.
a) decreases in mass
b) slows down
c) accelerates
d) is unbalanced

Newton's second law of motion states the relationship of mass, acceleration, and force. It says that
a) Acceleration equals force divided by mass
b) Force equals mass divided by acceleration
c) Force equals acceleration divided by mass
d) Every object attracts every other object in the universe

A(n) _____________________________ causes objects to move in a circle
a) large weight
b) terminal velocity
c) acceleration
d) centripetal force

The unit of force, a Newton, is equal to
a) kg x m/s
b) kg x m/s2
c) the amount of mass in an object
d) mass x acceleration

Forces can be added together only if they are acting on THE SAME OBJECTS
a) true
b) false
c)
d)

According to Newton's second law of motion, VELOCITY increases as force increases, if mass stays the same.
a) true
b) false
c)
d)

The force due to gravity is stronger if two objects are FURTHER AWAY.
a) true
b) false
c)
d)

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