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A graph of position (x) versus time (t) of a moving object s a straight line with a slope of 3.2 m/s. Which of the following is/are true of this object? (i)    The object has a uniform speed of 3.2 m/s (ii)   The moving object has no acceleration (iii)   The object has a uniform acceleration of 3.2 m/s2

What is the work done by gravity when a 2-kg object falls through a distance of 2 m?

What is the kinetic energy of 500 g mass moving at 2 m/s?

One side of a cube is 10 cm. What is its volume in liters?

When a bullet is fired from a gun, as the bullet accelerates forward, the gun recoils backward. This phenomenon is explained by:

Which of the following is NOT a form of heat transfer?

Which of the following electromagnetic radiations is heat radiation?

Which of the following is equal to 1 mg ? (i) 10 -2  g (ii) 10 -3  g (iii)  100 g (iv) 1000 g

When a child on a swing is pulled to one side and released, the swing goes back and forth changing energy from potential to kinetic and back continuously. The physical law involved in this is:

If latent heat of fusion of ice is 3.34 x 105 J/kg, what is the amount of heat required to melt completely 400 g of ice without a temperature change?(i)     1.34 x 105 J (ii)    2.68 x 105 J (iii)   13.44 x 105 J (iv)   26.8 x 105 J