Interactive Grade 9 Science Newton's Laws & Motion Test
Science · Grade 9 · 15 questions · 10 min
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Newton's Laws & Motion
1.
A student observes that when she applies the same force to two different trolleys, the lighter trolley accelerates more. Which of Newton's Laws directly explains this observation?
2.
When a gun fires a bullet, both the gun and the bullet experience equal and opposite forces. Why does the bullet accelerate much faster than the gun?
3.
A 70 kg person stands in a lift (elevator) that accelerates downward at 4 m/s². What is the apparent weight (normal force) of the person? (g = 10 m/s²)
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