# Forces And Motion Question Preview (ID: 55512)

Force = mass x acceleration
a) Newton's 1st law
b) Newton's 2nd law
c) Newton's 3rd law
d) Newton's 4th law

For every action there is an equal and opposite reaction.
a) Newton's 1st law
b) Newton's 2nd law
c) Newton's 3rd law
d) Newton's 4th law

An object in motion will remain in motion and an object at rest will remain at rest until acted on by an unbalanced force.
a) Newton's 1st law
b) Newton's 2nd law
c) Newton's 3rd law
d) Newton's 4th law

An object will always move __________.
a) in the direction of the strongest force
b) In the direction of a gravitational pull
c) in the direction of the force of friction
d) in the direction of the normal force

If a car starts moving suddenly, a drink without a lid might ____.
a) fly forwards
b) fly backwards
c) remain at rest
d) become inertia

Acceleration is _____.
a) speeding up
b) slowing down
c) turning
d) changing speed and/or direction

When you increase the force of an object the acceleration ____.
a) increases
b) decreases
c) stays the same
d) doubles

When the mass of an object increases, the acceleration _________.
a) increases
b) decreases
c) stays the same
d) doubles

When either the acceleration or the mass increases, the impact force ________.
a) increases
b) decreases
c) stays the same
d) doubles

When a ball hits a bat, which exerts more force on the other?
a) the ball
b) the bat
c) It depends on how fast the ball is traveling,
d) The ball and bat exert equal force on one another.

A swimmer pushes off of the wall when she turns. What is the equal but opposite force of the swimmer pushing back on the wall?
a) The force of the water pushing against the swimmer.
b) The force of gravity pulling down on the swimmer.
c) The force of the swimmer's legs when she kicks.
d) The force of the wall pushing the swimmer forwards.

The sun's gravity affects planets and other objects traveling through space based on all of the following except _____.
a) speed
b) mass
c) wavelength
d) distance

Friction is a force that acts in the ______ direction of the intended motion of an object.
a) same
b) opposite
c) perpendicular
d) parallel

Which of the following could reduce friction?
a) a smoother surface
b) ball bearings
c) lubricants