Tag: physics

Questions Related to physics

A single fixed pulley is equivalent to a :

physics machines levers and pulleys pulley pulleys

  1. first order lever

  2. second order lever

  3. third order lever

  4. complex machine

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Correct Option: A

In a wheel-and-axle :

physics a little effort, lot of work levers and pulleys pulley pulleys

  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

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Correct Option: B

In a pulley :

physics machines levers and pulleys pulley pulleys

  1. Load and effort are equal

  2. Load is greater than effort

  3. Load is less than effort

  4. Both have no relation

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Correct Option: A

In a pulley:

physics machines levers and pulleys pulley pulleys

  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

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Correct Option: D

Wheel-and-axle and rope move in :

physics a little effort, lot of work levers and pulleys pulley pulleys

  1. Same direction

  2. Opposite direction

  3. Perpendicular direction

  4. There is no relation between the two

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Correct Option: A

In a wheel-and-axle :

physics a little effort, lot of work levers and pulleys pulley pulleys

  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

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Correct Option: B

The steering wheel is a:

physics a little effort, lot of work levers and pulleys pulley pulleys

  1. first order lever

  2. complex machine

  3. third order lever

  4. wheel and axle

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Correct Option: D

A single fixed pulley is

physics machines levers and pulleys pulley pulleys

  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

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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 :

physics machines levers and pulleys pulley pulleys

  1. First order lever

  2. Second order lever

  3. Third order lever

  4. Complex machine

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Correct Option: A

A tap has a :

physics a little effort, lot of work levers and pulleys pulley pulleys

  1. Pulley

  2. Screw arrangement

  3. Wedge

  4. Wheel-and-axle arrangement

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Correct Option: D