Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
114 views
in Physics by (240k points)
closed by
Physical quantity of ________ is measured in watt?
1. Power
2. Momentum
3. Impulse
4. Kinetic Energy

1 Answer

0 votes
by (238k points)
selected by
 
Best answer
Correct Answer - Option 1 : Power

CONCEPT:

  • Physical quantity: It is a property of a material or system that can be quantified by measurement. A physical quantity can be expressed as the combination of a numerical value and a unit. 
    • For example, the Physical quantity mass can be quantified as n kg, where n is the numerical value and kg is the unit.
  • Power: It can be defined as the rate at which work is done i.e. energy converted.

The formula for power is P = W / t

  • The unit of power is the watt (W)

EXPLANATIONS:

  • Power is the physical quantity that is measured in watts.
  • Hence option 1 is the answer.

  • Momentum: Momentum is a physics term, it refers to the quantity of motion that an object has. A sports team that is on the move has momentum. If an object is in motion (on the move) then it has momentum.
    • momentum is mass times velocity. ( mv)
  • Impulse: A car is traveling at full speed. it crashes into the barrier, because of the negligence of the driver.
    • Impulse is the big force acting for a very small interval of time, it is represented by J.
    • Impulse formula is articulated as

J = F × t

  • where the force applied is given as F and the time interval throughout which force is applied is given as t.
  • Kinetic energy: "Kinetic energy is the energy possessed by the body by virtue of its motion"
    • Kinetic energy is a scalar quantity.
    • Kinetic energy is completely described by a magnitude alone.
    • The SI unit of kinetic energy is Joule which is equal to 1 kg.m2.s-2.
    • The C.G.S unit of kinetic energy is erg.

K.E = 1/2mv2.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...