What this chapter covers
Class 8 Science Chapter 5 'Exploring Forces' from NCERT Curiosity introduces force qualitatively. Students learn the different kinds of forces (push, pull, friction, gravity, magnetic, electrostatic, buoyant), how forces change motion or shape of an object, and how contact and non-contact forces differ. The chapter prepares students for the formal study of forces in Class 9.
Key topics in this chapter
- Push and pull as forces
- Contact and non-contact forces
- Effects of force on motion and shape
- Friction in daily life
- Gravity and buoyancy (qualitative)
Sample questions from this chapter
Here are 6 real questions students will encounter when they generate a worksheet for this chapter. Every question includes the answer.
MCQ
Medium
1 mark
Which of these is a non-contact force?
(a) Friction
(b) Muscular force
(c) Gravitational force
(d) Push of a hand
Answer: Gravitational force
Short Answer
Medium
3 marks
Differentiate between contact and non-contact forces with one example each.
Answer: • Contact force: acts when two objects are in contact. Example: friction.
• Non-contact force: acts even when there is no contact. Example: gravity.
• Both kinds can change motion or shape.
Fill in the Blank
Medium
1 mark
The mass of an object remains __________, whereas its weight may vary from place to place.
Answer: unchanged (the same)
Very Short
Medium
1 mark
What is upthrust (buoyant force)?
Answer: The upward force exerted by a liquid on an object placed in it.
True / False
Medium
1 mark
State True or False: A force is always required to change the speed of an object's motion.
Answer: True.
Long Answer
Hard
5 marks
List four effects a force can produce, with one everyday example of each.
Answer: • Starts motion: pushing a parked trolley to start it moving.
• Changes speed: pressing the brakes slows a cycle.
• Changes direction: hitting a moving cricket ball with a bat.
• Changes shape: pressing a rubber ball or squeezing a sponge.
Generate a worksheet with all 65 questions →
Frequently asked questions
What is included in Class 8 Science Chapter 5 (Exploring Forces)?
This chapter has 65 NCERT-aligned practice questions covering all the concepts from the Curiosity textbook's Chapter 5. Questions span easy, medium and hard levels across 9 different formats so students get a balanced practice set.
Are these questions based on the new NCERT Curiosity textbook?
Yes. Every question on Practico for Class 8 Science is mapped directly to the latest NCERT Curiosity textbook (the one CBSE schools are using now). The chapter numbers and chapter titles match the textbook exactly.
How many questions can I practice from this chapter?
65 questions are available right now. You can pick how many you want at a time — generate 10 quick MCQs, a 30-question worksheet, or a full exam-style mix. Each generation gives you a different random set.
Can I download a free PDF worksheet for Exploring Forces?
Yes — completely free, no sign-up required. Pick this chapter, choose the number of questions and types you want, and download a printable PDF (with or without answers) in one click.
What question types are available?
This chapter has assertion reason, fill blank, image, long, match, mcq, short, true false, very short. You can mix any combination, or filter to just the type you want to practice — for example, only numericals to drill calculation, or only short-answer questions for exam revision.
Is Practico aligned with CBSE exam patterns?
Yes. Practico questions are tagged by marks (1, 2, 3, 5) and by difficulty (Easy/Medium/Hard) just like CBSE exam blueprints, so you can build a worksheet that mirrors a real unit test or annual exam.