Sci Phy Rev_MSS_2021_Chp1_2_3_4

Quiz by Jessica Lew

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- Q1
Which of the following lengths is the longest?

2.5 micro meter

2.5 nm

2.5 Mm

2 km

60sEditDelete - Q2
A simple pendulum takes 34.0 s to complete 20 oscillations. What is one period[Hint: Period = Time/number of oscillations]

0.85 s

6.8 s

1.7 s

3.4 s

60sEditDelete - Q3
Which of the following will cause the period of the pendulum to change?

Decreasing the length of the pendulum.

Increasing the volume of the swinging pendulum.

Decreasing the mass of the pendulum bob.

Increasing the angle of the swinging pendulum.

60sEditDelete - Q4
Which of the following shows a scalar quantity?[Clue: Scalar qty means having magnitude only but no direction]

acceleration

mass

velocity

weight

60sEditDelete - Q5
A car travels along the route PQRST in 30 minutes(half an hour). What is the average speed of the car?[Hint: Speed= total distance(km)/total time(hr)]

20 km/h

10 km/h

60 km/h

30 km/h

60sEditDelete - Q6
An object falls freely near to the Earth. Which row describes the acceleration and the speed of the object?

A

B

D

C

60sEditDelete - Q7
Which row correctly describes the mass and weight of an object?

C

A

D

B

60sEditDelete - Q8
A 2 kg box is pushed by a force of 12 N across a smooth surface. Calculate the acceleration in m/s

^{2}24

6

0.17

10

60sEditDelete - Q9
A block 2.5 m long, 0.8 m wide and 1.0 m high rests on the ground as shown in the diagram below. Given that the block has a weight of 100 N, what is the highest pressure the block can exert on the ground? (gravitational field strength, g = 10 N/kg)Clue: Pressure= Force/Area

125 Pa

250 Pa

12.5 Pa

25.0 Pa

60sEditDelete