IST 8TH-SEM. REV PT 1

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•
Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is Newton's 2nd Law of Motion?
Back
Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It can be expressed with the formula: F = m * a.
2.
FLASHCARD QUESTION
Front
What is the formula to calculate force?
Back
The formula to calculate force is F = m * a, where F is force, m is mass, and a is acceleration.
3.
FLASHCARD QUESTION
Front
What is acceleration?
Back
Acceleration is the rate of change of velocity of an object. It is measured in meters per second squared (m/s²).
4.
FLASHCARD QUESTION
Front
What is the relationship between mass and acceleration according to Newton's 2nd Law?
Back
According to Newton's 2nd Law, as mass increases, acceleration decreases if the force remains constant.
5.
FLASHCARD QUESTION
Front
What type of radiation from the Sun can cause skin cancer?
Back
Ultraviolet (UV) radiation from the Sun can cause damage to the cells of living organisms, leading to skin cancer.
6.
FLASHCARD QUESTION
Front
How can people protect themselves from UV radiation?
Back
People can protect themselves from UV radiation by wearing hats, using sunscreen, and wearing protective clothing.
7.
FLASHCARD QUESTION
Front
What is the unit of force in the International System of Units (SI)?
Back
The unit of force in the SI system is the Newton (N).
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