Physical quantity - practice problems - page 3 of 315
A physical quantity is a term numerically describing a property or state of a physical object. For example, a physical quantity is a length, and its corresponding physical unit is a meter (symbol m). Similarly, the quantity is weight, and the unit is the kilogram (kg). Physical quantities can be divided into a scalar (has magnitude), vector (has magnitude and direction), and tensor (has magnitude and multiple directions).Number of problems found: 6285
- Kilometer 58281
Write a fraction, which part: 1) kilometer is 31 m 2) minutes is 42 seconds 3) the day is 10 o'clock - One Saturday
One Saturday evening there are 40 girls, 25 boys, 18 women and 17 men at a cinema. What fraction are girls? - Wonderland
The cost of admission to wonderland is 51.75. each bus we take costs 267.50 and holds 48 passengers. Suppose three classes of 27 and their teacher wanted to go. How much would they need to fundraise? - Weight fraction
To prepare the brine, we need 1500 g of an aqueous salt solution with a weight fraction of 0.08. What salt weight and water volume do we need to prepare it? - Mass fraction
Two teaspoons (24 g) of sugar are dissolved in a cup with 500 g of tea. Calculate the weight fraction of sugar in the tea. - Jack decides
Jack decides to hire a car. The cost 45+20D is dollars, where is the number of days Jack hires the car for. If Jack hires the car for four days, what will it cost? Dollars - Kittens
Sometimes Grace has kittens. Each kitten has 1/3 as much cat food as a full-grown cat. How many kittens can Grace feed with the 1.47 pounds? Solve on paper. Then check your work. One full-grown cat needs 0.25 pounds of food. - Shaina
Shaina baked a cake for 0.380 hours and noticed it was still undercooked. So she planned to put another batter in the oven and double the timer. How many hours will she put in the timer? - Electric wire
William has a piece of wire that measures 1 yard long. He will use wire to fix several electrical outlets in his house. How many inches long is the wire? Solve this problem using bar diagrams. - Deceleration
In a braking test, a vehicle that travels at 51 km/h stops in 5 s. What is its acceleration? - Unoccupied 42171
Pavel dug in the morning, 1/5 of the garden in the afternoon, and then 1/2 of the unoccupied part. What part of the garden remained unopened? - Leftover
Amos gets $2400 a month for his salary. He spends $1000 on rent. What fraction of his rent is leftover? - Oil tank
There is 67 m³ of oil in the tank. What is its weight? The density of the oil is 910 kg/m³. - Substance 40223
A body made of a substance has a volume of 0.860 m³ and a weight of 0.004 t. What is the density of this substance? - A patient
One kilogram equals 2.2 pounds. If a patient weighs 79.5kg, what is his weight in pounds? - Three-sevenths 32151
Tractor driver plowing three-sevenths of a rope measuring 1.4ha. How many m² of fields do the poor have yet? - Deciliters 30583
When Vírka visited the Dead Sea, she took a bowl with sand, pebbles, and water from the sea as a souvenir. The water in the bowl weighed 400g. How many deciliters of water did the eddy carry away from the sea? The density of salt water in the Dead Sea is - The body
The body has a volume of 15 cubic centimeters and a weight of 117 grams. What is its density? - Relationship 30501
When converting degrees Celsius (C) to degrees Fahrenheit (F), the relationship is used: F = C . 9/5 + 32. How many degrees Celsius are they in New York City if the thermometer reads 23 degrees Fahrenheit? - Density 30441
How many kg weighs 1 m³ of gold? Au gold density is 19.3 kg · dm − 3
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