Fysik

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: According to Newton’s Second Law, Force equals mass times acceleration.

Answer 2

True

Question 3

Fill in the blank: Newton’s Third Law states that for every action, there is an equal and opposite __________.

Answer 3

reaction

Question 4

What is the formula used in Newton’s Second Law?

Answer 4

F = ma (Force equals mass times acceleration)

Question 5

Multiple Choice: Which law describes inertia?

Answer 5

Newton’s First Law

Question 6

What is the unit of force in the International System of Units (SI)?

Answer 6

Newton (N)

Question 7

True or False: An object can experience motion without a net force acting on it.

Answer 7

False

Question 8

What is the primary concept of Newton’s First Law?

Answer 8

Inertia

Question 9

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 9

mass

Question 10

Multiple Choice: If a car accelerates from rest to 60 km/h in 5 seconds, what is the average acceleration?

Answer 10

12 km/h²

Question 11

What happens to the motion of an object if no net force acts on it?

Answer 11

It remains in its current state of motion.

Question 12

True or False: The mass of an object affects the amount of force required to change its motion.

Answer 12

True

Question 13

What does the term ‘net force’ refer to?

Answer 13

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

Question 14

Fill in the blank: According to Newton’s Third Law, forces always occur in __________.

Answer 14

pairs

Question 15

Multiple Choice: Which of the following is an example of Newton’s Third Law?

Answer 15

When you push against a wall, the wall pushes back with equal force.

Question 16

What is the relationship between mass and inertia?

Answer 16

Inertia is directly proportional to mass; greater mass means greater inertia.

Question 17

True or False: Acceleration is the rate of change of velocity.

Answer 17

True

Question 18

What is the effect of friction on motion according to Newton’s laws?

Answer 18

Friction opposes motion, affecting the net force acting on an object.

Question 19

Fill in the blank: A force of 10 N applied to a 2 kg object will produce an acceleration of __________.

Answer 19

5 m/s²

Question 20

Multiple Choice: An astronaut in space throws a ball. What happens to the ball?

Answer 20

It continues to move in the same direction at a constant speed.

Question 21

What does Newton’s Second Law imply about the relationship between force, mass, and acceleration?

Answer 21

Increasing the force increases acceleration; increasing mass decreases acceleration for the same force.

Question 22

True or False: A heavier object requires less force to accelerate than a lighter object.

Answer 22

False

Question 23

What is the significance of the concept of action-reaction pairs in Newton’s Third Law?

Answer 23

It explains that forces always occur in equal and opposite interactions.

Question 24

Fill in the blank: The acceleration produced by a net force is __________ proportional to the mass of the object.

Answer 24

inversely

Question 25

Multiple Choice: Which of the following best illustrates inertia?

Answer 25

A passenger lurching forward in a car that suddenly stops.