McGraw Hill Ch2L1 Review Question Preview (ID: 60430)


Forces/Gravity/Friction. TEACHERS: click here for quick copy question ID numbers.

One object has a mass of 22 grams and another has a mass of 33 grams. Which object will have a greater gravitational force?
a) object with a mass of 22 grams
b) object with a mass of 33 grams
c) can not be determined
d) the gravitational force would be equal

A force can change the speed, direction, or _____ of an object.
a) strength
b) gravity
c) friction
d) shape

Friction produces _____.
a) air resistance
b) waves
c) gravity
d) heat

Friction due to moving air
a) sliding friction
b) rolling friction
c) static friction
d) air resistance friction

An object with a ______ texture will usually have less friction than an object with a _____ texture.
a) rough, smooth
b) sleek, bumpy
c) smooth, rough
d) rough, static

Friction opposes:
a) heat
b) gravity
c) motion
d) sound

Why do some people rub the bottom of new dress shoes with sandpaper?
a) to smooth out the bottom of the shoes, to reduce friction
b) to create a rougher surface to increase friction
c) to create a rougher surface to reduce friction
d) to smooth out the bottom of the shoes, to increase friction

If there is too much friction
a) you would have a difficult time moving
b) you would be weightless
c) you wouldn't be able to stop
d) you would fall

Two objects that are further apart have ______ gravity than two objects that are closer together.
a) more
b) less
c) the same
d) a fraction of

Friction is a _____ force
a) contact
b) noncontact
c) reversible
d) intermittant

The strength of gravity is determined by mass and _____.
a) sound
b) strength
c) distance
d) direction

Gravity is a _____ force
a) contact
b) noncontact
c) reversible
d) intermittant

Forces are measured in ______.
a) centimeters
b) kilograms
c) newtons
d) meters

A quantity that has both size and direction
a) vector
b) scalar
c) qualitative
d) quantitative

All forces have ______.
a) length and width
b) size and direction
c) size and speed
d) magnitude and height

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