Which physical quantity is a base quantity?

• Electric current

• Weight

• Velocity

• Density

Which phenomenon shows the effect of inertia?

• A

• B

• C

• D

Diagram below shows three identical metal balls, J, K and L.

• A

• B

• C

• D

a cyclist and bicycle with mass 60kg moving on a road with an acceleration of 20 m s^-1.There is a frictional force of 40N acting on the bicycle.

What is the forward thrust force exerted by cyclist to the bicycle?

• 120N

• 1160N

• 1200N

• 1240N

A thermometer is used to measure the temperature of patient. Which concept explains the working principle of the thermometer?

• Specific heat capacity

• Thermal equilibrium

• Thermal contact

• Heat transfer

• A

• B

• C

• D

• A

• B

• C

Diagram below shows light ray propagates through a glass block. The refractive index of the glass is 1.50. What is the angle of refraction, r of the light ray?

• 19^o

• 25^o

• 35^o

• 49^o

• 
• B

• C

• D

• Image is virtual

• Image is smaller

• Image is inverted

• Image is laterally inverted