Chapter 1

The area under a force Vs displacement graph gives ...............

• work done

• velocity

• power

The body at rest can have.........

• speed

• energy

• momentum

The construction of a spring is based on .............law.

• Newton's

• Pascal's

• Hooke's

The amount of work done in one unit of time is called.......

• power

• energy

• acceleration

The SI unit for constant k in Hooke's law is ..........

• Nm

• Nm^-1

• Nm²

One kgms^-2 is equal to one.............

• joule

• newton

• watt

The graph of strain Vs stress is a

• parabola

• curve

• straight line

The ratio of output work to input work is defined as

• energy

• efficiency

• work done

Consider a single fixed pulley. The ideal mechanical advantage is ........

• one

• two

• half

A mega watt is equivalent to................kilowatt.

• 10⁶

• 10⁴

• 10³