Last updated on December 5th, 2022 at 11:44 am
This post presents a Force & Laws of Motion worksheet for class 9 (MCQ worksheet) with multiple choice questions taken from the chapters (a) Laws of motion & (b) Force of different types. This is useful for Class (grade) 9 and 10 students of different boards like CBSE, ICSE, IGCSE, etc.
Force & Laws of Motion worksheet for class 9 – MCQ
1 ) First law of motion states that if an object experiences no net force, then its velocity is
constant |
decreases |
increases |
equal to zero |
2 ) According to the second law of motion, the acceleration of a body
is inversely proportional to the mass of the body |
is proportional to the mass of the body |
does not depend on the mass of the body |
equal to zero |
3 ) According to three Newton’s laws of motion, massive objects
take more force to move |
take less force to move |
take more time to move |
can not be moved to large distances |
4 ) What is the significance of mass in determining force?
Determines magnitude |
Determines direction |
Determines distance |
Determines velocity |
5 ) Which of the following are examples of dynamics?
All of these answers |
A pulley system demonstrating push and pull |
Two magnets being attracted to one another |
An object resting on a surface |
6 ) What major topic in physics does mass play a central role in determining the behavior of bodies, such as force?
Newton’s Second law |
Kinetic Energy |
Momentum |
Thermodynamics |
7 ) If an object experiences no net force, its velocity will
remain constant |
decrease |
increase |
become zero |
8 ) The First Law of Motion explains the relationship between
velocity and motion |
force and motion |
time and space |
speed and acceleration |
9) The Second Law of Motion explains the relationship between
force and motion |
velocity and motion |
time and space |
speed and acceleration |
10 ) The net force on an object is equal to the
derivative of its linear momentum |
derivative of its speed |
derivative of its mass |
derivative of its internal energy |
11 ) The third law of motion states that
for every action, there is an equal and opposite reaction |
the net force on an object is equal to the rate of change, or derivative, of its linear momentum |
a body at rest stays at rest unless acted on by an external force |
a body in motion stays in motion unless acted on by an external force |
12 ) If something weighs 10N on Earth, what is the mass of the object?
1 kg |
1 N |
10 kg |
10 N |
13) How does the apparent weight of an object underwater differ from the same exact object in the air?
The buoyancy affects the apparent weight underwater |
The difference in gravity affects the apparent weight underwater |
The difference in mass affects the apparent weight underwater |
The apparent weight of the object is exactly the same both underwater and in the air |
14) What is the normal force of an object on Earth with a mass of 1 kg and on an incline of 60 degrees?
5 N |
20 N |
200 N |
None of these |
15) If a person has a weight of 500 N, what is the normal force on that person riding an elevator moving up at a constant speed of 2 m/s?
500 N |
1000 N |
4000 N |
250 N |