GROWTH DEVELOPMENT CHILD
FORMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A bike rider on a smooth and level road, pedaling at a constant rate.
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A chair sitting on the floor with balanced forces acting in opposite directions.
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A train pulling another train, each with the same amount of force.
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A ball rolling across the floor with friction acting in the opposite direction.
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Detailed explanation-1: -Newton’s First Law: Inertia Newton’s first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This tendency to resist changes in a state of motion is inertia.
Detailed explanation-2: -Inertia causes a moving object to stay in motion at the same velocity (speed and direction) unless a force acts on it to change its speed or direction.
Detailed explanation-3: -Inertia was best explained by Sir Isaac Newton in his first law of motion. Basically, the law states that an object at rest stays at rest and an object continues its state of motion until an external force acts on it. Here are some examples: One’s body movement to the side when a car makes a sharp turn.
Detailed explanation-4: -According to Newton’s first law, a body in motion tends to remain in motion at a constant velocity. However, when you slide an object across a surface, the object eventually slows down and stops. Why? The object experiences a frictional force exerted by the surface, which opposes its motion.