set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 5 EXERCISES
The following question based on mechanics (mass, force, acceleration, work, energy, momentum, velocity) topic of general science mcq
(a) Walking on floor
(b) A cricket player lowering his hands while catching a cricket ball
(c) Flight of a jet plane
(d) Rebounding of a rubber ball
The correct answers to the above question in:
Answer: (b)
A cricketer lower his hands while catching a ball to increase the time so as to decrease the force exerted by the ball on cricketer's hands. This is not an example of Newton's third law of motion.
Practice mechanics (mass, force, acceleration, work, energy, momentum, velocity) (set 3) Online Quiz
Discuss Form
Read more mechanics work and energy Based General Science Questions and Answers
Question : 1
A ball is dropped from a satellite revolving round the earth at a height of 120 km. The ball will
a) fall down to earth gradually
b) continue to move with the same speed along the original orbit of satellite.
c) continue to move with same speed along a straight line tangentially to the satellite at that time.
d) go far away in space
Answer »Answer: (b)
The orbital speed of satellite is independent of mass of satellite, so the ball will behave as a satellite and will continue to move with the same speed in the original orbit.
Question : 2
On the basis of following features identify the correct option. A. It is measured in units of kg m/s. B. Its direction is same as that of velocity of body.
a) Both A and B
b) Inertia
c) Momentum
d) Neither A and B
Answer »Answer: (c)
Question : 3
If the number representing volume and surface area of a cube are equal, then the length of the edge of the cube in terms of the unit of measurement will be
a) 5
b) 4
c) 3
d) 6
Answer »Answer: (d)
Question : 4
When a body is stationary
a) the combination of forces acting on it balances each other
b) the force acting on it not in contact with it
c) there is no force acting on it
d) the body is in vacuum
Answer »Answer: (a)
Question : 5
A large truck and a car, both moving with a velocity of magnitude v, have a head-on collision. If the collision lasts for 1 s, which vehicle experiences a greater change in momentum?
a) Both have the different changes in momentum
b) Both have the same change in momentum
c) Car has more change in momentum than truck
d) Truck have more change in momentum than Car
Answer »Answer: (b)
After collision,
According to the third law of motion, both the truck and the car will exert the same force on each other in opposite direction at the same time.
We know,
Force = change in momentum per unit time.
because force and time are the same for both the truck as well as a car; so the change in momentum of the truck is equal and opposite to the change in momentum of the car.
Question : 6
What is the correct equation for finding the acceleration?
a) a = ${v + u}/t$
b) a = u + vt
c) a = ${v - u}/t$
d) a = ${v + u}/2$
Answer »Answer: (c)
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
Syllogism Practice Questions Answers PDF - IBPS Clerk 2024
Practice Verbal Reasoning Syllogism multiple choice questions and answers with Fully solved explanation, PDF for the IBPS Clerk Prelims 2024 Bank Exam
Continue Reading »
IBPS Clerk Prelims 2024 Synonyms Questions Solved Answers
Most important IBPS Clerk Prelims 2024 Synonyms and Antonyms multiple choice questions and answers with detailed solutions, English vocabulary PDF Download
Continue Reading »
New Cloze Test Questions and Answers PDF - IBPS Clerk 2024
The most important Cloze Test questions with detailed answers for upcoming IBPS Clerk prelims 2024. Latest English verbal ability practice MCQs, PDF
Continue Reading »
Mensuration Aptitude Practice Mcq Questions IBPS Clerk 2024
Most Important Practice Mensuration aptitude multiple choice questions, answers with detailed solutions, PDF beginner to advanced for IBPS Clerk Prelims 2024
Continue Reading »