EASY
5th CBSE
IMPORTANT
Earn 100

A single fixed pulley does not reduce the effort required to lift a load. So, how does it make our work easier?

Important Questions on Simple Machines

HARD
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C
What do you mean by density? How is a knowledge of density useful in finding out if a substance will float or sink in water?
EASY
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C
State Archimedes’ principle.
EASY
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C
What are the rules for floating and sinking, according to Archimedes’ principle?
HARD
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C
Iron is denser than water so it sinks in water. But if a boat is made out of the same iron, it floats in water. Why?
HARD
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C
When an object is immersed in water, why does its weight reduce? How much weight is lost?
EASY
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>MULTIPLE CHOICE QUESTIONS>Q 1
Which of these is not a simple machine?
MEDIUM
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>MULTIPLE CHOICE QUESTIONS>Q 2
Which of these simple machines does not reduce effort?
MEDIUM
5th CBSE
IMPORTANT
Success With SCIENCE AHEAD 5>Chapter 10 - Simple Machines>MULTIPLE CHOICE QUESTIONS>Q 3
Which of these is a second class lever?