Unit 1 : Physics

What is the SI unit of length ?

• mm

• cm

• m

• km

What is the SI unit of time ?

• milliseconds

• seconds

• minutes

• hours

Which of the following is not an instrument used to measure length

• Vernier calipers

• Balance

• Micrometer Screw Gauge

• Metre Rule

What is the area of a piece of paper with dimensions 11.2 cm by 15.4 cm

• 172.48 m²

• 172.48 cm²

• 0.17248 m²

• 172.48 cm³

What is the volume in cm³ of a block of height 0.23 m , length 0.06 m , width 0.15 m ?

• 2007

• 2070

• 0.00207

• 0.0207

A toy car with a volume 54 cm³ is placed into a 500ml measuring cylinder containing 250ml of water. What is the new reading on the measuring cylinder ?

• 554 ml

• 446 ml

• 304 ml

• 354 ml

A metal block of dimensions 1.5 cm by 2.3 cm by 4.5 cm has a mass of 42 g. What is its density?

• 2.7 g/cm³

• 3.6 g/cm³

• 652 g/cm³

• 3.2 g/cm³

Which of the following statement is correct

• 1 mg = 10 000 g

• 100 mg = 1 g

• 1 000 000 mg = 1g

• 1 000 000 mg = 1kg

How do you measure an irregular solid ?

• Displacement water can

• Beam Balance

• Metre Rule

Which of the following can you measure using the apparatus in the diagram ?

• the density of liquid only

• the density of the stone only

• the density of the liquid and stone