stress and pressure . thrust and pressure.
Is it possible for two quantities to have the same units?
(A) No. Units have dimensions . ... since different units can be used to measure the same dimensions. For example, time [T] can be measured in seconds, minutes, or hours.
Can two physical quantities have the same unit?
kilometres, or pounds vs. ... Commensurable physical quantities are of the same kind and have the same dimension, and can be directly compared to each other, even if they are originally expressed in differing units of measure, e.g. yards and metres, pounds (mass) and kilograms, seconds and years.
Which two quantities have the same units of work?
7 Answers. One definition of work is “a change in energy.” Any change in a physical quantity must have the same units as that quantity. So just like impulse (which is a change in momentum ) has the same units as momentum, work has the same units as energy.
Can a physical quantity have more than one unit?
Physical quantities are a characteristic or property of an object that can be measured or calculated from other measurements. Units are standards for expressing and comparing the measurement of physical quantities. All units can be expressed as combinations of four fundamental units
Which pair has same unit?
The correct answer is Momentum and force . Thus both have the same unit. Thus, both have the same unit.
Which quantity has same unit?
Answer: Momentum and impulse both has same unit Kg ms – 1 .
How do you calculate work?
The formula for work is , work equals force times distance . In this case, there is only one force acting upon the object: the force due to gravity. Plug in our given information for the distance to solve for the work done by gravity.
What is work formula?
To express this concept mathematically, the work W is equal to the force f times the distance d, or W = fd . If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.
Does force and work have same dimensions?
Stress is the force per unit area so it has the same dimension as pressure . From here, we can see that the dimension of momentum and impulse is equal. ... So each type of energy whether it is kinetic energy or nuclear energy, they all have the same dimension.
What is not a physical quantity?
A physical quantity 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. ... So, from the above explanation it is clear that density is not a basic physical quantity. Then the correct answer is “C”.
What are the 10 physical quantities?
- Temperature is measured by the SI unit ‘celsius’.
- Length is measured by the SI unit ‘metre’.
- Mass is measured by the SI unit ‘kilogram’.
- Time is measured by the SI unit ‘second’.
- Frequency is measured by the SI unit ‘hertz’.
- Electric current is measured by the SI unit ‘ampere’.
Is momentum a physical quantity?
Momentum ( P ) is a measure of mass in motion. While energy may be converted into other forms (heat, light, sound) when two objects collide, the total momentum will always be conserved. One might define momentum to be a quantity which is conserved when physical objects collide. ... Momentum is a vector quantity .
Which pair does not have same units?
The correct answer is option 2 i.e Force and Pressure
What kind of physical quantity is force?
| Dimension Unit (abbreviation) Description | Mechanics | force newton (N) force that accelerates a mass of 1 kilogram at a rate of 1 meter per second per second | pressure or stress pascal (Pa) a pressure or stress of 1 newton per square meter | General |
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Which of the following is the smallest unit?
Thus fermi is the smallest unit.
