Physics ch 1-2

Which of the following is not a fundamental quantity?

• Length

• Mass

• Temperature

• Velocity

The number of significant number in 0.00700 is

• 5

• 2

• 3

• 4

What is SI unit of force ?

• Kilogram

• Newton

• Meter

• Pascal

An object is thrown vertically upwards with a speed of 10 m/s. What is its velocity at the highest point?

• 10

• -10

• 0

• 9.8

Which of the following equations is correct for uniformly accelerated motion?

• s = vt

• V= u+at

• a=v/t

• S = ut + vt

What is the area under a velocity-time graph equal to?

• Displacement

• Acceleration

• Speed

• Force

Which graph represents a body at rest?

• Position time graph in a straight line

• Position time graph in curve

• Position time graph in horizontal line

• Velocity time graph is inclined

The dimensional formula of velocity is:

• [M L T^-2]

• [M L T^-1]

• [L T^-1]

• [L^2 T^-2]

If a car travels 60 km in 2 hours, what is its average speed?

• 30

• 120

• 20

• 60

A body is moving with uniform acceleration. Which of the following is correct?

• Velocity remains constant

• Acceleration is zero

• Velocity changes at a constant rate

• Distance remains the same