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Ch 11 Forces

Total questions: 28

Worksheet time: 15mins

Name
Class
Date
1.

Word for "push or a pull"

a)

gravity

b)

force

c)

acceleration

2.

What are forces measured in?

a)

m/s

b)

velocity

c)

Newtons

3.

Is weight proportional to mass?

a)

yes

b)

no

4.

What force has to be overcome for an object to start moving?

a)

air resistance

b)

sliding friction

c)

static friction

5.

What is the upward force on an object falling through air

a)

air resistance

b)

friction

c)

gravity

6.

What would happen to a thrown ball if gravity didn't exist

a)

fall down

b)

continue traveling horizontally

c)

float midair

d)

continue traveling vertically

7.

What force opposes motion?

a)

strength

b)

gravity

c)

friction

d)

direction

8.

How are forces represented in pictures and diagrams?

a)

boxes

b)

arrows

c)

stars

9.

Which is not a type of friction?

a)

static

b)

sliding

c)

fluid

d)

vector

10.

"objects that have mass have a gravitational pull on each other" is the law of ....

a)

Universal gravitation

b)

Newtons 1st law

c)

Newtons 2nd law

d)

Newtons 3rd law

11.

How does an increase in distance affect gravity?

a)

decrease

b)

increase

12.

How does an increase in mass affect gravity?

a)

increase

b)

decrease

13.

Which is a contact force?

a)

ball falling

b)

playing piano

c)

magnets attracted

14.

Which is a noncontact force?

a)

karate chop

b)

ball and bat

c)

gravity pulling down

15.

what happens when balanced forces act upon an object?

a)

objects motion stays the same

b)

stays at rest

c)

object accelerates

16.

what happens when unbalanced forces act upon an object?

a)

object stays at rest

b)

object accelerates

c)

motion stays the same

17.

How can an object accelerate?

a)

change in speed

b)

change in direction

c)

change in circles

d)

change in appearance

18.

If you are playing tug of war and the rope moves off-center, you know the forces are _______.

a)

big

b)

unbalanced

c)

directional

d)

balanced

19.

What law states the relationship between force, mass, and acceleration?

a)

Newtons 1st law

b)

Newtons 2nd Law

c)

Newtons 3rd law

20.

What is the relationship between force, mass, and acceleration?

a)

mf=a

b)

f=ma

c)

f=m/a

21.

How does the moon orbit the earth?

a)

forces

b)

centripetal force

c)

friction

22.

What is the perpendicular force on satellites orbiting the earth?

a)

gravity

b)

friction

c)

resistance

23.

What type of collision has objects stick together?

a)

elastic

b)

inelastic

c)

forced

d)

friction

24.

What type of collision has objects bounce off?

a)

elastic

b)

inelastic

c)

forced

d)

friction

25.

What is it when two objects apply forces to each other?

a)

force pair

b)

gravity

c)

noncontact force

26.

What is the equation for momentum?

a)

p=mv

b)

m=pv

c)

v=mp

27.

For every action there is an equal and opposite reaction

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

28.

When an object exerts a force on another object the force applied is met with a reaction force that is __________________________________ and _________________________________. 

a)

equal in strength

b)

different strength

c)

same direction

d)

opposite direction