Worksheet Solutions: Magnetism Projects - 1 | DIY Science Fun: Cool School Projects - Class 6 PDF Download

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Q1: ___________ attract magnetic substances like iron, nickel, and cobalt.
Ans: Magnets
Magnets have the property of attracting magnetic substances like iron, nickel, and cobalt.

Q2: When two like poles of a bar magnet are brought close together, they ___________ each other.
Ans: repel
Like poles of a bar magnet (e.g., two south poles or two north poles) repel each other due to the magnetic forces pushing them apart.

Q3: Opposite poles of a bar magnet ___________ each other.
Ans: attract
Opposite poles of a bar magnet (e.g., a south pole and a north pole) attract each other due to the magnetic forces pulling them together.

Q4: A freely suspended bar magnet always aligns itself to show ___________ and ___________ poles.
Ans: north and south
A freely suspended bar magnet always aligns itself to show its north and south poles, in accordance with the law of magnetism.

Q5: The attracting capacity of the poles of a bar magnet is greater than that of the ___________ parts.
Ans: middle
The attracting capacity of the poles of a bar magnet is greater than that of the middle parts because the magnetic field is stronger at the poles.

Multiple Choice Questions (MCQ)

Q1: What is the primary purpose of the magnetic car project?
(a) Entertainment
(b) Understanding magnetism
(c) Promoting car toys
(d) Art and craft
Ans: (b) Understanding magnetism
The primary purpose of the magnetic car project is to understand the principles of magnetism.

Q2: What are the materials used for making the magnetic car's body?
(a) Paper and cardboard
(b) Metal and plastic
(c) Wooden block and bamboo sticks
(d) Rubber and foam
Ans: (c) Wooden block and bamboo sticks
The magnetic car's body is made of a wooden block and bamboo sticks.

Q3: In a bar magnet, opposite poles are:
(a) South and south
(b) North and north
(c) South and north
(d) North and east
Ans: (c) South and north
Opposite poles of a bar magnet are a south pole and a north pole.

Q4: What are bearings commonly used for?
(a) Cooking
(b) Vehicle wheels
(c) Planting trees
(d) Writing
Ans: (b) Vehicle wheels
Bearings are commonly used in vehicle wheels to allow for smooth and controlled linear motion.

Q5: Which of the following is NOT mentioned as a common use of magnets?
(a) Sound systems
(b) Compass
(c) Refrigeration
(d) Medical devices
Ans: (c) Refrigeration
Refrigeration does not typically use magnets, but the other options mentioned (sound systems, compass, medical devices) do.

True and False

Q1: True or False: Magnets repel substances like iron, nickel, and cobalt.
Ans: False
Magnets attract substances like iron, nickel, and cobalt; they do not repel them.

Q2: True or False: Like poles of a bar magnet attract each other.
Ans: True
Like poles of a bar magnet repel each other due to the magnetic forces pushing them apart.

Q3: True or False: Magnets are used in locking doors and windows.
Ans: True
Magnets are indeed used in locking doors and windows, among other devices.

Q4: True or False: A freely suspended bar magnet always aligns itself to show east and west poles.
Ans: False
A freely suspended bar magnet always aligns itself to show north and south poles, not east and west poles.

Q5: True or False: Magnets are not present in household appliances like blenders and vacuums.
Ans: False
Magnets are commonly present in household appliances like blenders and vacuums.

Short Answer Questions

Q1: Explain one practical application of magnets in everyday life.
Ans: Magnets are used in speakers to create sound in audio systems.

Q2: Describe the purpose of using bearings in the magnetic car project.
Ans: Bearings are used in the magnetic car project to provide smooth and controlled motion for the wheels, reducing friction.

Q3: How do magnets help in finding direction? Mention a device that uses this principle.
Ans: Magnets help in finding direction through compasses. A compass needle, which is a small bar magnet, aligns itself with the Earth's magnetic field, indicating north and south.

Q4: What is the significance of understanding magnet properties in our daily lives?
Ans: Understanding magnet properties is essential as magnets are used in various applications in our daily lives, from locking systems to medical devices. Knowing how magnets work helps us use these technologies effectively.

Q5: Why is adult supervision important when conducting science projects like the magnetic car?
Ans: Adult supervision is crucial in science projects to ensure safety and provide guidance when handling materials and tools. It helps prevent accidents and promotes learning.