Sadržaj • Sila • Položaj • Brzina • Ubrzanje Description Explore forces and motion as you push household objects up and down a ramp. Lower and raise the ramp to see how the angle of inclination affects the parallel forces. Graphs show forces, energy and work. Primjeri obrazovnih ciljeva • Predict, qualitatively, how an external force will affect the speed and direction of an object's motion. • Explain the effects with the help of a free body diagram. • Use free body diagrams to draw position, velocity, acceleration and force graphs and vice versa. • Explain how the graphs relate to one another.

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• Given a scenario or a graph, sketch all four graphs.