Friction - Class 8 Science Workbook
Answer the questions and tap Submit to see your score. Your progress is auto-saved on this device.
Jump to question
Q1 · MCQ · 1 mark
Which of the following forces opposes the motion of an object?
Q2 · FILL · 1 mark
The force of friction always acts in the direction __________ to the motion of the moving object.
Q3 · SHORT · 2 marks
Explain why it is difficult to walk on a wet floor.
Q4 · MCQ · 1 mark
Which of the following materials would have the least friction?
Q5 · FILL · 1 mark
Friction can produce __________ which can damage machine parts.
Q6 · SHORT · 2 marks
Give two examples where friction is useful to us.
Q7 · MCQ · 1 mark
When an object slides over a surface, the friction acting is called:
Q8 · FILL · 1 mark
Sprinkling powder on a carrom board __________ friction.
Q9 · MCQ · 1 mark
Friction can be increased by:
Q10 · SHORT · 2 marks
Define fluid friction. Why is it also called 'drag'?