Podcast
Questions and Answers
What is the SI unit of force?
What is the SI unit of force?
What is the relationship between voltage, current, and resistance in an electrical circuit?
What is the relationship between voltage, current, and resistance in an electrical circuit?
Which of the following is an example of a non-contact force?
Which of the following is an example of a non-contact force?
What is the SI unit of acceleration?
What is the SI unit of acceleration?
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Which of the following is an example of scalar quantity?
Which of the following is an example of scalar quantity?
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What does the area under a velocity-time graph represent?
What does the area under a velocity-time graph represent?
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Study Notes
Units and Quantities
- The SI unit of force is Newton (N)
- The SI unit of acceleration is meter per second squared (m/s²)
Electrical Circuits
- The relationship between voltage, current, and resistance in an electrical circuit is expressed by Ohm's Law: V = I × R
Forces
- A non-contact force is a force that acts over a distance, without physical contact, such as gravity or magnetism
Scalar and Vector Quantities
- A scalar quantity is a quantity that has only magnitude, but no direction, such as mass or temperature
Motion
- The area under a velocity-time graph represents the displacement of an object
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Description
Test your knowledge of Grade 7 physics with this quiz! Explore the SI unit of force, understand the relationship between voltage, current, and resistance in electrical circuits, and identify examples of non-contact forces. Challenge yourself with these fundamental physics concepts.
