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What is the acceleration due to gravity at the space station.

Why do astronauts appear weightless despite being near the Earth?

Video 1: How to create a line graph based on data
Video 2: Examples of different line graphs
Video 3: Further examples of line graphs

Basics of gravity and the Law of Universal Gravitation.

This unit is about how things move along a straight line or, more scientifically, how things move in one dimension. Examples of this would be the movement (motion) of cars along a straight road or of trains along straight railway tracks.

This video explains how to plot straight line graphs.

Speed necessary for the space station to stay in orbit.

Viewing g as the value of Earth's gravitational field near the surface rather than the acceleration due to gravity near Earth's surface for an object in freefall.

This YouTube video elaborates on what weather is and what causes changes in the weather.

What would fall faster on the moon, a brick or a feather?