Suppose that we find a certain quantity expressed in kilowatt-seconds. We can convert this quantity to

If the tape of a ticker-timer shows dots equally spaced at 1cm apart and the vibrator makes 50 dots per second, what is the speed of the tape in meter per second?

I. Diameter of a small ball bearing
II. Thickness of a piece of paper
III. Diameter of a measuring cylinder
IV. Length of a piece of wire

Which of the above can be measured using a micrometer screw gauge?

Which of the following set of physical quantities are vectors?

What is the reading of the vernier scale?

The velocity v of a particle in time t is given by the equation
v = 10 + 2t². Find the instantaneous acceleration after 5 seconds.

Which of the following is a set of vectors?

A truck travels 10km northwards, 4km eastwards, 6km southwards and 4km westwards to arrive at a point T. What is the total displacement?

At what respective values of x, y and z would the unit of force, the Newton, be dimensionally equivalent to M^xL^yT^z 

A stream is flowing at 0.75m/s and a boat heading perpendicularly to the stream landed at the opposite bank at an angle 30°. Calculate the velocity of the boat?

In the diagram, P, Q & R are vectors. Which of the following options gives the correct relationship between the vectors?

What's the Kelvin equivalent of the lowest possible temperature?

Which of the following is not a fundamental S.I unit?

Which of the following parameters manifests itself as a vector quantity?

Imagine that we have access to a machine that collects energy over a period of time, and then converts all the energy into matter. We employ that machine to collect sunlight for a few weeks, and then push a button marked "Make Matter!"
How can we calculate the mass of the resulting material sample in kilograms?

If we want to talk meaningfully about the velocity vector for an object at a certain moment in time, we must specify the object's instantaneous

The power source of a ticker-timer vibrates 40 times in one second. If the ticker-timer made 200 dots during an experiment, determine how long the experiment lasted.

A boat travels due east at a speed of 40m/s across a river flowing due south at 30m/s. What is the resultant speed of the boat?

Which of the following instruments has a reading accuracy of 0.5mm?

Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule?

The inner diameter of a small test tube can be measured accurately using?

The thickness of the central portion of a thin converging lens can be determined very accurately by using?

We can express electrical current in terms of charge carriers

Which of the following physical quantities is a scalar?

Which of the following nonstandard "units" could we theoretically use to express accumulated power consumption over time?