# Physical Science - Chapter 6 Part 2 Question Preview (ID: 2271)

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What is the force of a 45kg mass accelerated at 5.0m/s2?
a) 125N
b) 225N
c) 756N
d) 1000N

An ice skater with a mass of 65 kg moves along the ice with a constant velocity of 2.0 m/s. What is the skaterвЂ™s momentum?
a) 130 kgвЂўm/s
b) 32 kgвЂўm/s
c) 130 N
d) 32 N

Why does a ball thrown horizontally follow a path that is curved downward?
a) There is no acceleration on the ball.
b) The ball is accelerated in the horizontal direction only
c) The ball is accelerated by gravity in the vertical direction only.
d) The ball is accelerated in both the vertical and horizontal directions.

. the velocity of a falling object when the force of gravity is balanced by the force of air resistance
a) terminal velocity
b) inertia
c) NewtonвЂ™s second law of motion
d) NewtonвЂ™s first law of motion

. the relationship between an objectвЂ™s acceleration and its mass and force acting on it
a) NewtonвЂ™s second law of motion
b) terminal velocity
c) inertia
d) NewtonвЂ™s third law of motion

An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.
a) NewtonвЂ™s first law of motion
b) NewtonвЂ™s second law of motion
c) NewtonвЂ™s third law of motion
d) terminal velocity

the tendency of all objects to resist any change in motion
a) inertia
b) NewtonвЂ™s first law of motion
c) NewtonвЂ™s second law of motion
d) terminal velocity

Every action has an equal and opposite reaction
a) NewtonвЂ™s third law of motion
b) NewtonвЂ™s second law of motion
c) NewtonвЂ™s first law of motion
d) terminal velocity

Which thing has the most inertia?
a) Nick Carlson
b) a car
c) an ocean liner (cruise ship)
d) the moon

How does a sky diver benefit from air resistance?
a) Allows him/her to only hit terminal velocity and allows the parachute to slow the descent further.
b) They don't benefit.
c) It allows them to go faster.
d) It allows them to go up!

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