Science Motion Review Question Preview (ID: 24253)


Chapter 2. TEACHERS: click here for quick copy question ID numbers.

Velocity includes both
a) speed and direction
b) direction and time
c) distance and speed
d) gravity and mass

The rate that a car's velocity changes is its
a) force
b) acceleration
c) friction
d) speed

When you change your direction of movement, you change your
a) motion
b) mass
c) velocity
d) gravity

The tendency of an object to stay at rest is called
a) weight
b) lazy
c) Newton
d) inertia

An object will keep moving until something
a) picks it up
b) slows it down
c) tells it to stop
d) speeds it up

forces work in
a) pairs
b) groups
c) construction zones
d) unison

A measure of force that gravity exerts on an object is
a) weight
b) gravity
c) tons
d) friction

The closer things are the _______________ the attraction
a) less
b) greater
c) equal
d) louder

If things are far apart, they have _________ attraction
a) more
b) equal
c) louder
d) less

what makes a falling object accelerate as it gets closer to Earth?
a) gravity
b) friction
c) weight
d) force

To reduce sliding friction on the moving parts of a machine, you could add
a) sand
b) oil
c) rocks
d) chains

Rolling friction occurs between one flat surface and another surface that is
a) flat
b) round
c) rigid
d) smooth

The type of friction that helps a parachute float slowly to Earth
a) streamlining
b) air resistance
c) rolling friction
d) sliding friction

when you measure how far something travels in a certain amount of time you measure the
a) weight
b) height
c) speed
d) distance

If you want a machine to reduce air resistance, then you do what to it?
a) push it
b) motivate it
c) dance with it
d) streamline

A push or a pull is an example of
a) force
b) mass
c) speed
d) air resistance

How does friction affect inertia ?
a) speeds it up
b) slows it down
c) has no affect
d) makes it smile

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