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Test: Work, Force, Energy And Simple Machines - 1 - Class 5 MCQ


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10 Questions MCQ Test Science Class 5 - Test: Work, Force, Energy And Simple Machines - 1

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Test: Work, Force, Energy And Simple Machines - 1 - Question 1

What are the major components of a pulley?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 1

The major components of a pulley include:

  • The grooved wheel, which helps guide the rope or cable.
  • The rope or cable that runs over the wheel, used to lift or move loads.
Test: Work, Force, Energy And Simple Machines - 1 - Question 2

Which of the following can be used to open a lid or cut things?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 2

The lever is a simple tool that can be used to open a lid or cut things. It functions by applying force at one end to move or lift an object at the other end.

  • Lever: Commonly used for tasks like prying open lids or cutting objects.
  • Other options like a flywheel, piston, or crankshaft mechanism are not typically used for these purposes.
Test: Work, Force, Energy And Simple Machines - 1 - Question 3

To make things move, we need to use __________.

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 3

- Energy is required to make things move because it is the ability to do work.
- When energy is applied to an object, it can overcome any opposing forces such as friction or gravity.
- Muscular force can also be a source of energy, as our muscles generate force to move objects.
- Gravitational force and friction are forces that can act against the motion of an object, but energy is what is needed to overcome these forces and make things move.

Test: Work, Force, Energy And Simple Machines - 1 - Question 4

State whether the following statement is True or False:

Machines help us to do work easily and with less effort.

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 4
  • Machines are like helpful friends that make our tasks easier. They help us with our work so that we don't have to use too much strength.
  • Imagine trying to lift a very heavy box all by yourself. It would be really hard, right?
  • But if you use a machine like a pulley or a lever, it can help you lift that heavy box with much less effort.
  • So, the statement that machines help us do work easily and with less effort is True!
Test: Work, Force, Energy And Simple Machines - 1 - Question 5

Which of the following cannot be considered a simple machine?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 5

The concept of simple machines refers to basic mechanical devices that change the direction or magnitude of a force. These machines are fundamental in understanding mechanics and often include the following:

  • Screw: A type of inclined plane wrapped around a cylinder.
  • Wedge: Functions as a moving inclined plane that separates or holds materials.
  • Lever: A rigid bar that pivots around a fulcrum to lift or move loads.

In contrast, a water bottle is not considered a simple machine as it does not perform any mechanical function to change force or motion.

Test: Work, Force, Energy And Simple Machines - 1 - Question 6

What type of force pulls everything towards the Earth?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 6

Gravitational force is the force that pulls everything towards the Earth. 
This force is what gives objects weight and causes them to fall to the ground when dropped. 
Detailed Notes: Force & Simple Machines (Part 1)

Test: Work, Force, Energy And Simple Machines - 1 - Question 7

What is a simple machine that is like a slope with one end higher than the other?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 7
  • An inclined plane is like a slope with one end higher than the other.
  • It helps us move heavy things more easily. Imagine it like a slide but for moving heavy stuff.
  • So, an inclined plane makes it simpler to push heavy loads up by reducing the force needed. 
Test: Work, Force, Energy And Simple Machines - 1 - Question 8

How does a lever help us?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 8
  • A lever helps us by making work easier. Imagine using a seesaw at the playground.
  • When you push down on one side, the other side goes up.
  • This is how a lever works. It helps us lift or move things with less effort. 
Test: Work, Force, Energy And Simple Machines - 1 - Question 9

What kind of energy is released from a radio?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 9

The energy released from a radio is primarily sound energy. Here's a simple explanation:

  • Radios convert electrical signals into sound waves.
  • These sound waves allow us to hear music or speech.
  • This process involves energy transformation, from electrical to sound energy.

Thus, the main energy released by a radio is sound energy.

Test: Work, Force, Energy And Simple Machines - 1 - Question 10

What is force?

Detailed Solution for Test: Work, Force, Energy And Simple Machines - 1 - Question 10

Force is defined as a push or pull that acts on an object, which can cause it to move, stop, or change its direction.

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