Forces Review

Question 1

An object will continue at whatever velocity it's going at unless acted on by an ___ force

Accepted Answer

unbalanced

Question 2

Which of Newtons' laws is best demonstrated with this force diagram?

Accepted Answer

3rd

Question 3

Is the object shown in this force diagram moving in the x-plane?

Accepted Answer

Maybe, but if it is it isn't accelerating

Question 4

What kind of friction might Vector B be?

Accepted Answer

Kinetic

Question 5

Which best depicts a baseball which has been pitched (to the right) but not yet hit?

Accepted Answer

d

Question 6

Which force diagram best depicts the graph?

Accepted Answer

b

Question 7

What upwards force does a bucket like this experience?

Accepted Answer

Ft

Question 8

What's the weight(Fg) of a 1 kg object in Newtons?

Accepted Answer

9.8 N

Question 9

For every ____________ there is an equal and opposite _____________

Accepted Answer

force/force

Question 10

What is the acceleration of a 10 kg object, being pushed with 100 N, if there's 40 N of friction?

Accepted Answer

6 m/s2

Question 11

What kind of friction might be shown in Vector B?

Accepted Answer

Either

Question 12

Which force diagram best depicts the graph?

Accepted Answer

b

Question 13

Which force diagram best shows the graph below?

Accepted Answer

a

Question 14

Which of these is a field force?

Accepted Answer

Fg

Question 15

Which force diagram best depicts the graph?

Accepted Answer

a

Question 16

Find the mass: It can be accelerated at 10 m/s2 by two people pulling together with 20 N each (no friction).

Accepted Answer

4 kg

Question 17

Balanced forces means

Accepted Answer

no acceleration

Question 18

I drop a boulder on an pebble. The boulder pushes on the pebble, and the pebble pushes back.

Accepted Answer

The forces are the same size.

Question 19

I give my tissue box a shove, but it doesn't go very far. Why not?

Accepted Answer

Friction causes an unbalanced force.

Question 20

What is the difference between static friction and kinetic friction?

Accepted Answer

Fs only exists when a force has been applied but the object isn't moving.

Questions 20