Science 2

Which one of the following is not a mixture?

• air

• milk

• mercury

• cement

Which of the following are chemical changes?

A. Cooking of Food

B. Digestion of Food

C. Freezing

of water

D. Water is heated up.

• A and B

• C and D

• A, B and C

• All of the above

What is the third most common gas found in the air we breathe?

• Argon

• Carbon Dioxide

• Neon

• Argon

Which one of the following substances does not have a melting point?

• Bromine

• Mercury

• Sodium chloride

• Glass

Which of the following is not a vector quantity?

• Speed

• Torque

• Velocity

• Displacement

Temperature can be expressed as derived quantity in terms of any of the following.

• length and mass

• length, mass and time

• mass and time

• In terms of none

It is more difficult to walk on ice than on a concrete road because?

• there is very little friction between the ice and feet pressing it

• ice is soft when compared to concrete

• there is more friction between the ice and feet

• None of these

Pick out the only scalar quantity

• Power

• magnetic momentum

• Electric field

• Average Velocity

Air pressure is usually highest when the air is?

• warm and moist

• warm and dry

• cool and dry

• cool and moist

It refers to the endless cycle of codependence, co-influence, co-production of technology and

society upon the other.

• Science

• Science and Technology

• Science, Technology and Society

• Technology