Romanian 9th Grade Physics
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Physics Quiz - Newton's Laws
1. What does Newton's First Law describe?
Energy conservation
Inertia
Electricity
2. What is the correct formula for force?
F = m × a
v = d / t
E = mc²
3. Newton’s Third Law states:
Force equals mass times acceleration
For every action, there is an equal and opposite reaction
Objects fall because of magnetism
4. What is the unit of force?
Joule
Newton
Watt
5. Which of the following is an example of Newton's Third Law?
A car accelerating forward
A rocket pushing off the ground
A ball falling to the ground
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