Quick Revision - 3NA Physics (Chap 1 and 2)

What is the precision of the vernier caliper?

• 0.01 mm

• 0.01 cm

• 0.1 cm

• 0.001 cm

What is the precision of the micrometer screw gauge?

• 0.1 mm

• 0.01 mm

• 0.001 mm

• 0.1 cm

The period for 10 oscillations were measured twice. The two readings were 10.0 s and 12.0 s. What is the period of the oscillation?

• 1.1 s

• 2.2 s

• 11.0 s

• 22.0 s

The speed of light is 300 000 000 m/s. What is this expressed in standard form?

The speed of light is 300 000 000 m/s. Which option below is of the equivalent magnitude?

• 300 nm

• 300 mm

• 300 Mm

• 300 Gm

Which is the formula to calculated average speed of a body?

• distance / time taken

• total distance / total time taken

• distance x time

• total distance x total time

A car's speed increases uniformly from rest. Which statement best describes the motion of the car?

• zero acceleration

• constant acceleration

• increasing acceleration

• constant speed

The speed-time graph of a body is shown. The distance travelled by the body in 3 s is:

• 30 m

• Area A

• Area A + Area B

• Area A + Area B + Area C

The distance travelled between 4 and 7 seconds is:

• 0 m

• 5 m

• 5 x 3 = 15 m

• 5 x 7 = 35 m

• The speed of a body undergoing free fall increases by 10 m every second.

• A free falling object experiences no force.

• Weight is the result of gravitational field strength acting on the mass of a body.

• A body with a mass of 1 kg experiences a 10 N force due to gravity.