Force and Laws of Motion Quiz

Class IX

Science

Force and Laws of Motion

13 questions

HARD

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Preview questions

1. What is the SI unit of force?

Newton · Pascal · Joule · Kilogram

2. According to Newton's first law, an object at rest will remain at rest unless acted upon by a:

balanced force · unbalanced force · frictional force · gravitational force

3. Which of the following statements is true about inertia?

Inertia depends on speed. · Inertia is the tendency to change direction. · Inertia is the resistance to change in motion. · Inertia is only present in moving objects.

4. What is the relationship between mass and acceleration in Newton's second law?

F = m/a · F = ma · F = m + a · F = m - a

5. If a car accelerates from rest to a speed of 20 m/s in 5 seconds, what is its acceleration?

2 m/s² · 4 m/s² · 5 m/s² · 10 m/s²

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