Density - practice for 11 year olds
Number of problems found: 117
- Liquid density
What is the volume if the measure is 20kg and the density is 2kg/m³? - Unit price 2
Cookie dough can be purchased in tubs or rolls. A 32-ounce tub cost $4.56 and a 16.5-ounce roll costs $2.50. Which is the better buy per ounce? Write the answer as an A or B option. - An object
An object has a mass of 900 g and a volume of 1875 cm³. Calculate the density. - A green
A green rope is 60.5 m long. Each meter of the rope has a mass of 0.052 kg. What is the total mass of the green rope?
- A piece 8
A piece of metal has a mass of 2210 g. The volume of the metal is 260 cm³. What is the density? - Refueling 83303
A liter of gasoline costs €1.2. After refueling, my car weight increased by 15 kg. The density of gasoline is p=750kg/m³. How many euros did I fill up with? - Centimeter 83033
Calculate the weight in kg of a steel rope 1.5 cm in diameter and 10 m long if one cubic centimeter of steel weighs 7.8 g - Experimental 82019
3.6 tons of sugarcane were harvested on the experimental plot of 0.2 ha. How many tons of sugarcane can be harvested on a plot of land of 18.6 hectares with the same yield per hectare? - Konečný 81976
Mr. Konečný used 0.9 kg of paint to paint an 8 m long and 1.2 m high fence. a) How many kg must he buy when he will paint a 35m long fence of the same height? b) How much paint will Mr. Malík need for a fence 1.5m high and 42m long.
- Calculate 81899
10 ml of mercury has been measured to weigh 0.135 kg. Calculate the density of mercury and compare it with the density shown in the tables. - Weighs 81870
The ring weighs 28g and has a volume of 2cm³ to find out if it is made of pure gold. - Substance 81736
What kind of substance is it if it is enclosed in a cube with a volume of 8 m³ weighing 110 kg and the entire cube weighs 115.78 kg? - Dimensions 81622
We cut the 80 cm and 50 cm, and 20 cm frames with a weight of 160 kg to a frame of half the dimensions. What is his weight now? - The concrete basement
The concrete base has a square base a = 90 cm and is 0.2 m high. How many kg of concrete did we use to build it if the concrete density is ρ=2200 kg/m³?
- Calculate 80793
The liquid has a specific gravity of γ = 9050 N. m-3. Calculate its specific gravity, the mass of 2 m³ of this liquid, and also of 3 m³ of this liquid. - Hydrostatic 80790
The hydrostatic pressure at a depth of 6.5 m in an open liquid container is 79.5 kPa. What is the specific gravity of this liquid? - Calculate 79684
Calculate the density of wood, which is a board with a volume of 0.2 cubic meters weighing 100 kg. - A fuel
A fuel tank has 28 gallons of fuel. One gallon of fuel weighs 7 1/10 pounds. How many pounds of fuel are in a full tank? - Rectangular 71354
There is a rectangular plot of land in the schoolyard on which they want to sow grass. How many kg of grass seed will they need if the plot is 125 m long and 8.5 m wide? 1 kg of grass seed is needed for 25 m².
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