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3 cards from this section. Quick, good the night before a test.
What does Newton's First Law state?
Think about objects that stay in place unless pushed.
Give an example of inertia.
Consider what happens when you stop pushing a rolling ball.
According to Newton's First Law, an object at rest will:
Think about what happens when nothing pushes or acts on it.
True or false: An object in uniform motion has no forces acting on it.
Consider the concept of balanced forces.
An ice hockey puck slides on a frictionless surface. If no external forces act on it, what will happen to its motion over time?
Remember, in the absence of forces, objects maintain their state of motion.
A 5 kg box is pushed with a force of 20 N. If the frictional force acting on the box is 5 N, what is the net force and the acceleration of the box?
Calculate net force and then use Newton's second law to find acceleration.
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