Physics & Motion Quiz

1) A Body moves 6 m north, 8 m east and 10 m vertically upwards, what is its resultant displacement?

6 m
10 m
14 m
√200 ≈ 14.14 m

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2) A man goes 10m north, then 20m east. Displacement is?

22.5 m
25 m
25.5 m
30 m

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3) A person moves 30 m north, 20 m east, then 10√2 m south-west. Displacement?

10 m north
10 m south
10 m west
Zero

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4) Aeroplane flies 400 m north, 300 m south, then 1200 m up. Net displacement?

1200 m
1300 m
1400 m
1500 m

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5) Athlete completes one round of circular track (radius R) in 40s. Displacement after 2 min 20s?

0
2R
R
πR

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6) Wheel radius 1 m rolls forward half revolution. Displacement of point initially on ground?

1 m
2 m
√5 m
π m

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7) Person travels half distance with velocity v1, half with v2. Average velocity?

(v1+v2)/2
2v1v2/(v1+v2)
√(v1v2)
v1v2/(v1+v2)

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8) Displacement-time graph slopes tanθA, tanθB. Ratio of velocities?

tanθA : tanθB
tanθB : tanθA
θA : θB
1

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9) Car goes A→B speed v1, back B→A speed v2. Average speed?

(v1+v2)/2
2v1v2/(v1+v2)
√(v1v2)
v1v2/(v1+v2)

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10) Boy walks 6 km @2.5 km/h to school, back @4 km/h. Average speed?

24/13
40/13
3
1/2

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