Tag: physics

Questions Related to physics

A single fixed pulley is equivalent to a :

  1. first order lever

  2. second order lever

  3. third order lever

  4. complex machine


Correct Option: A

In a wheel-and-axle :

  1. wheel rotates freely on axle

  2. wheel is fixed to the axle

  3. direction of the force remains same'

  4. mechanical advantage is always more than one


Correct Option: B

In a pulley :

  1. Load and effort are equal

  2. Load is greater than effort

  3. Load is less than effort

  4. Both have no relation


Correct Option: A

In a pulley:

  1. wheel is fixed over the axle

  2. effort is greater than the load

  3. mechanical advantage will be more than one

  4. wheel rotates freely over the axle


Correct Option: D

Wheel-and-axle and rope move in :

  1. Same direction

  2. Opposite direction

  3. Perpendicular direction

  4. There is no relation between the two


Correct Option: A

In a wheel-and-axle :

  1. Wheel rotates freely on axle

  2. Wheel is fixed to the axle

  3. Direction of the lbrce remains same

  4. Mechanical advantage is always more than one


Correct Option: B

The steering wheel is a:

  1. first order lever

  2. complex machine

  3. third order lever

  4. wheel and axle


Correct Option: D

A single fixed pulley is

  1. A machine that only changes the direction of the force applied, not the amount

  2. A machine that only changes the amount of force not direction

  3. Both

  4. None


Correct Option: A
Explanation:

A single fixed pulley is a machine that only changes the direction of the force applied, not the amount.
The wheel of a fixed pulley does not move because the wheel is attached to some support.

A single pulley is a :

  1. First order lever

  2. Second order lever

  3. Third order lever

  4. Complex machine


Correct Option: A

A tap has a :

  1. Pulley

  2. Screw arrangement

  3. Wedge

  4. Wheel-and-axle arrangement


Correct Option: D