State two functions of a machine.

Important Questions on Simple Machines

MEDIUM

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 6

Name six simple machines. Give an example of each machine.

EASY

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 7

Define the term 'work input' and 'work output' in relation to a machine.

EASY

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 8

Explain the term mechanical advantage of a machine.

EASY

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 9

Define the term efficiency of a machine.

EASY

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 10

What is an ideal machine ?

EASY

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 11

Can a machine have an efficiency of $100 \%$ ? Give a reason to support your answer.

EASY

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 12

'A machine is $75\%$ efficient'. What do you understand by this statement ?

EASY

6th ICSE

IMPORTANT

Concise Physics Middle School for Class 6>Chapter 4 - Simple Machines>TEST YOURSELF>Q 13

What is a lever?