M1 Science: Chapter 1 Review

Which of the following is not a natural phenomenon?

• Lightning and thunder

• Use of a computer in offices and homes

• Melting of ice

• Growth of plants

Which of the following instruments can be used to measure the volume of liquids to an accuracy of 0.1 cm^3?

• Measuring cylinder

• Beaker

• Burette

• Pipette

Which of the following should be practiced in the science laboratory?

• Wash and keep all apparatus clean after use

• Pour back any unused chemical into its bottle

• Turn off the bunsen burner after use

The diagram here shows a hazard warning symbol on a chemical bottle. Which substance is an example represented by the symbol?

• Mercury

• Ammonia

• Sodium hydroxide

• Plutonium

Which of the following is the prefix value of milli?

• 0.1

• 0.01

• 0.001

• 001

In a pendulum experiment the pendulum swings back and forth from point P to point Q, then back to P. The time taken for this oscillation will increase if ____.

• the length of the pendulum is increased
• the mass of the pendulum is increased
• the length of the string decreases

• the mass of the wooden block increases

Which of the following is a correct match about the symbol and value of a prefix?

• M : 10³

• k : 10²

• d : 10^-2

• μ : 10^-6

A teaspoon of sugar weighs 56 grams. It is equivalent to ___.

• 0.56 kg

• 5.6 × 10^-2 kg

• 5.6 × 10^-3 kg

• 5.6 × 10^-4 kg

Which of the following is correct about the mass of an object?

• The pull of the Earth's gravitational force on the object

• The unit for the mass of the object of newton

• The mass of the object remains the same at all places

• It can be measured with a spring balance

There is a graduated cylinder of 50 mL of water, there is 4 marbles that are placed in the water and the level of water increases to 62 mL, what is the average volume of a marble?

• 3 mL
• 9 mL

• 18 mL

• 54 mL