GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -The truck has more momentum than the car. By momentum, we mean inertia in motion. Momentum is the mass of an object multiplied by its velocity. A moving truck has more momentum than a car moving at the same speed because the truck has more mass.
Detailed explanation-2: -The momentum of an object varies directly with the speed of the object. Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum.
Detailed explanation-3: -Which has more momentum, a heavy truck moving at 30 km/hr or a light truck moving at 30 km/hr? Cannot be determined. They both have the same momentum.
Detailed explanation-4: -Momentum (P): The product of mass and velocity is called momentum. The SI unit of momentum is kg m/s. Momentum (P) = Mass (m) × Velocity (v)
Detailed explanation-5: -From the definition of momentum, it becomes obvious that an object has a large momentum if both its mass and its velocity are large.