Chapter 11-Motion And Momentum Question Preview (ID: 29132)


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When a diver jumps off a diving board, gravity pulls him or her down to the water. What is the reaction force to Earth's gravity?
a) The diver's legs push against the board.
b) friction between the diver and the water slows the driver.
c) Air resistance slows the driver.
d) The diver pulls Earth up.

The relationship among force, mass, and acceleration is stated in _______________.
a) the law of conservation of momentum
b) Newton's first law of motion
c) Newton's second law of motion
d) Newton's third law of motion

The distance traveled divided by the time taken to travel the distance is ________________.
a) average speed
b) mass
c) momentum
d) speed

Forces that are equal in size but opposite in direction are ________________.
a) balanced forces
b) frictional forces
c) inertial forces
d) net forces

Whenever a body is in motion, there is always _____________ to oppose the motion.
a) friction
b) inertia
c) gravity
d) acceleration

The statement, for every action, there is an equal but opposite reaction, is a statement of _______________.
a) the law of conservation of momentum
b) Newton's first law
c) Newton's second law
d) Newton's third law

According to Newton's second law of motion, _________________.
a) F=mv
b) F=m/a
c) A=m/F
d) F=ma

The force you have to overcome to start an object moving is _________________.
a) rolling friction
b) static friction
c) sliding friction
d) air resistance

The upward force on an object falling through the air is _________________.
a) air resistance
b) inertia
c) gravity
d) terminal velocity

A feather falls through the air more slowly than a brick because of ______________.
a) gravity
b) air resistance
c) inertia
d) momentum

Air resistance _______________ as you move faster.
a) increases
b) decreases
c) remains the same
d) eventually disappears

Newton's first law of motion states that an object remains at rest unless a ____________ force acts on it.
a) balanced
b) frictional
c) gravitational
d) net

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