Density & Buoyancy Worksheet

How does the density of a block of steel compare to the density of a steel boat?

• The block of steel is less dense than the steel boat.

• The block of steel is more dense than the steel boat.

• The block of steel and the steel boat have the same density.

• The block of steel is not made of the same material as the steel boat.

Why do beach balls float?

• Because they are made of metal.

• Because they are filled with air, which is less dense than water.

• Because they are heavier than water.

• Because they are solid objects.

How does a scuba diver sink and float?

• By changing the color of their suit.

• By adjusting the amount of air in their buoyancy control device.

• By swimming faster.

• By holding their breath.

What is the SI unit used to measure weight?

• Kilogram

• Gram

• Newton

• Pound

How many grams are there in a kilogram?

• 10

• 100

• 1,000

• 10,000

What is the main difference between mass and weight?

• Mass is measured in pounds, weight in kilograms.

• Mass is the amount of matter, weight is the force of gravity.

• Mass changes with location, weight does not.

• Mass is measured in newtons, weight in grams.

If a boy weighs 445 newtons on Earth, how much would he weigh on Jupiter?

• 445 newtons

• 1,125 newtons

• 100 newtons

• 1,000 newtons

Tags

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What is the formula to find the volume of a solid cube or rectangle?

• Multiply length, width, and height

• Add length, width, and height

• Subtract length from width and height

• Divide length by width and height

What is the volume of a rectangular box with dimensions 5 cm x 3 cm x 1 cm?

• 15 cm³

• 10 cm³

• 8 cm³

• 20 cm³

How can you find the volume of an odd-shaped object like a key?

• By placing it in water and measuring the displaced volume

• By measuring its length, width, and height

• By weighing it on a scale

• By using a ruler to measure its circumference