Class 8 Science Chapter 5: Exploring Forces — practice questions with answers
Free practice for Class 8 Science, Chapter 5: Exploring Forces. Try the solved questions below, then take a free test with instant marking and explanations.
50 questions22 easy, 21 medium, 7 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. What is a force?
- A push or pull on an object resulting from its interaction with another object
- Only a push
- Energy stored in food
- A type of motion
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Answer: A. A push or pull on an object resulting from its interaction with another object
Why: At least two objects must interact. [p.65]
Why: At least two objects must interact. [p.65]
Q2. The SI unit of force is the ______.
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Answer: newton
Why: Its symbol is N. [p.65]
Why: Its symbol is N. [p.65]
Q3. Ragini was cycling into a strong wind blowing towards her. Why did she have to pedal harder?
- She was riding against the wind, which pushed against her
- Her tyres were flat
- The road was downhill
- The wind was behind her
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Answer: A. She was riding against the wind, which pushed against her
Why: The wind applied a force opposite to her motion. [p.63]
Why: The wind applied a force opposite to her motion. [p.63]
Q4. Which are effects a force can have on an object? (Tick all that apply)
- Make it move from rest
- Change its direction of motion
- Change its shape
- Change its colour
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Answer: A. Make it move from rest; B. Change its direction of motion; C. Change its shape
Why: Force can also change speed. [p.65]
Why: Force can also change speed. [p.65]
Q5. Rolling a chapati mainly shows which effect of force?
- Change in shape
- Change in direction
- Motion from rest
- Change in colour
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Answer: A. Change in shape
Why: The dough is flattened. [p.65]
Why: The dough is flattened. [p.65]
Q6. A fielder stopping a moving ball shows which effect of force?
- Change in speed (to zero)
- Change in shape only
- Motion from rest
- No effect
Show answer
Answer: A. Change in speed (to zero)
Why: Force can slow or stop motion. [p.65]
Why: Force can slow or stop motion. [p.65]
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Frequently asked questions
How many practice questions are there for Class 8 Science Chapter 5: Exploring Forces?
50 questions (22 easy, 21 medium, 7 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 8 Science syllabus, used by CBSE and many state boards.