1) select the image that shows friction a) b) 2) what is force a) and push or pull b) object in motion c) balanced object d) any push 3) what is a balanced force a) when an object is moving b) when an object is at rest 4) which image shows an object at rest a) b) 5) what is gravity a) a force that keeps everything on earth b) a force that pushes planets out of orbit

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