Forces

Question 1

: What is the push or pull on an object that can cause it to accelerate called

Answer 1

Force

Question 2

What is the unit of measure for force?

Answer 2

Newtons

Question 3

What is the sum of all forces acting on an object called?

Answer 3

Resultant force

Question 4

Newton’s First Law of Motion is also called:

Answer 4

Law of inertia

Question 5

In a tug of war, when one team is pulling with a force of 100 N and the other 80 N, what is the net force?

Answer 5

20N

Question 6

Newton’s first Law of Motion states that if there is no net force acting on an object it will:

Answer 6

Remain at rest

Question 7

What does Newton’s Second Law of Motion state?

Answer 7

F=ma

Question 8

In the equation F = ma, what does m represent?

Answer 8

Mass

Question 9

How much net force is required to accelerate a 2000 kg car at 3.00 m/s2?

Answer 9

6000N

Question 10

you apply a net force of 3 N on 100 g-box, what is the acceleration of the box?

Answer 10

30 m/s2

Question 11

Which is true from Newton’s Third law of motion?

Answer 11

For every action force there is an equivalent reaction force in the opposite direction.

Question 12

Q: What is the net force on 200 g ball when it hits a wall with acceleration of 10 m/s2?

Answer 12

2N

Question 13

Are mass and weight the same?

Answer 13

No

Question 14

What will be different on the moon than on the earth?

Answer 14

Weight

Question 15

What do you multiply mass by to get the weight?

Answer 15

Gravity

Question 16

If you mass is 40 kg, what is your weight on the Earth?

Answer 16

392

Question 17

Q: If the gravity of the Moon is 1/6 of g (which is 9.8 m/s2), what is the mass of an object that has a weight of 115 N on the Moon?

Answer 17

70.4

Question 18

The normal force acts on any object that:

Answer 18

Touches a surface

Question 19

What is the normal force acting on a 50 kg dog?

Answer 19

490N

Question 20

What is the force that acts between two object in contact because of action-reaction?

Answer 20

Friction force

Question 21

: In the equation F(f) = uF(n), where F(f) is the Force of Friction and F(n) is the Normal Force

Answer 21

coefficient of friction

Question 22

If you throw a 150 g book on a floor where u = 0.2, what is the force of friction?

Answer 22

29 N

Question 23

How big is the net force acting on an object with constant velocity?

Answer 23

0N

Question 24

a net force of 7 N was constantly applied on 400 g object at rest, how long will it take to raise its velocity to 80 m/s?

Answer 24

4.57s

Question 25

If you push with a 5N force on a 1 kg box that is resting on a floor where u = 0.3, will the box move?

Answer 25

Yes