11. Which of the following is a scalar quantity?
a) Velocity
b) Acceleration
c) Distance
d) Force
12. A car is initially at rest. It accelerates uniformly and reaches a speed of 60 km/h in 10 seconds. What is its acceleration?
a) 6 m/s^2
b) 6 km/h
c) 60 m/s^2
d) 600 km/h
13. An object is moving with a constant speed of 10 m/s. What is its velocity?
a) 0 m/s
b) 10 m/s
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c) -10 m/s
d) It cannot be determined without additional information
14. Which of the following is the correct equation for calculating displacement?
a) s = ut + 1/2at^2
b) s = vt
c) s = (v + u)t/2
d) s = v – u
15. A ball is thrown vertically upwards. Which of the following statements is true about its acceleration?
a) It is positive throughout the motion
b) It is negative throughout the motion
c) It is zero at the highest point
d) It is constant throughout the motion
