Newton's Laws

Question 1

What is Newton’s First Law of Motion?

Answer 1

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Question 2

True or False: Inertia is the tendency of an object to resist changes in its state of motion.

Answer 2

True

Question 3

Fill in the blank: According to Newton’s Second Law, Force equals mass times _____.

Answer 3

acceleration

Question 4

What is the formula for calculating force in Newton’s Second Law?

Answer 4

F = m * a

Question 5

What does the term ‘net force’ refer to?

Answer 5

The overall force acting on an object after all the forces are combined.

Question 6

True or False: An object can have a net force of zero while still moving.

Answer 6

True

Question 7

What is Newton’s Third Law of Motion?

Answer 7

For every action, there is an equal and opposite reaction.

Question 8

Multiple Choice: Which of the following best describes inertia? A) The force that causes motion B) The resistance to change in motion C) The acceleration of an object

Answer 8

B) The resistance to change in motion

Question 9

What is the unit of force in the SI system?

Answer 9

Newton (N)

Question 10

Fill in the blank: The mass of an object is a measure of its _____.

Answer 10

inertia

Question 11

True or False: Weight is the force of gravity acting on an object.

Answer 11

True

Question 12

What is the relationship between mass and weight?

Answer 12

Weight is mass multiplied by the acceleration due to gravity (W = m * g).

Question 13

Multiple Choice: Which law explains why a rocket moves in space? A) First Law B) Second Law C) Third Law

Answer 13

C) Third Law

Question 14

What happens to an object if the net force acting on it is zero?

Answer 14

It remains at rest or continues to move at a constant velocity.

Question 15

Fill in the blank: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its _____ .

Answer 15

mass

Question 16

What does it mean when we say that forces are balanced?

Answer 16

The forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Question 17

True or False: An object will accelerate if there is a net force acting on it.

Answer 17

True

Question 18

What is the effect of increasing the mass of an object on its acceleration when a constant force is applied?

Answer 18

The acceleration decreases.

Question 19

Multiple Choice: Which of the following is an example of Newton’s Third Law? A) A car accelerating B) A swimmer pushing off the wall C) A ball rolling down a hill

Answer 19

B) A swimmer pushing off the wall

Question 20

What is the term for the force that opposes the motion of an object through a fluid?

Answer 20

Drag

Question 21

Fill in the blank: The acceleration due to gravity on Earth is approximately _____ m/s².

Answer 21

9.81

Question 22

What does a free-body diagram represent?

Answer 22

It shows all the forces acting on an object.

Question 23

True or False: A heavier object falls faster than a lighter object in a vacuum.

Answer 23

False

Question 24

What is the primary factor that affects an object’s acceleration according to Newton’s Second Law?

Answer 24

The net force acting on the object.

Question 25

Multiple Choice: Which of the following statements is true? A) Mass and weight are the same B) Mass is a measure of gravitational force C) Weight depends on gravity

Answer 25

C) Weight depends on gravity