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Chapter 11, Part 2

Test Description: Force and Newton's Law

Instructions: Answer all questions to get your test result.

1) A feather falls through the ar more slowly than a brick because of ________________ .

Ainertia Bmomentum Cair resistance Dgravity

2) To describe velocity, you need to know _________________.

Aspeed and acceleration Bspeed and time Cspeed and direction Ddirection and acceleration

3) If gravity did not affect the path of a horizontally thrown ball, the ball would ____________________ .

Ago straight up Bfollow a curved path Ctravel horizontally Dfall straight down

4) Momentum is a measure of _____________________ .

Ahow hard it is to stop an object Bthe amount of matter in an object Cthe tendency of an object to change its motion Dthe amount of force acting on an object

5) Air resistance ________________ as you move faster.

Aeventually disappears Bincreases Cdecreases Dremains the same

6) A 300-N force acts on a 25-kg object. The acceleration of the object is _____________________ .

A300 m/s2 B25 m/s2 C12 m/s2 D7,500 m/s2

7) Newton's first law of motion states that an object remains at rest unless a ______________ force acts on it.

Abalanced Bfrictional Cnet Dgravitational

8) When amino acids are linked together, the molecule formed is a __________________________ .

Aprotein Bpolyalcohol Clipid Dcarbohydrate

9) When Object A collides with object B and bounces back, its final momentum is _________________ its initial momentum.

Ain the same direction as Bless than Cin the opposite direction of Dgreater than

10) If you exert a force on an object in motion you will change its ______________________ .

Ainertia Bweight Cmomentum Dmass

*select an answer for all questions

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