Objects in motion

Science, Grade 2

Objects in motion

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Objects in motion

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Objects in motion

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Study Guide Objects in motion Science, Grade 2

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FORCES AND MACHINES How do Objects Move? Many objects can be moved: Up, down, to the left, and to the right. What is Force? A force is a push or pull that can make something move. Example: You use force to push a ball down the court. Forces and Change Gravity is a force that pulls things down to the ground. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
When you drop something (like a pencil), gravity forces it to the ground. A hard push needs more force. Less force is needed for a light push. What is SPEED? Speed is how fast or how slow something moves. In order to move fast you need more force. Let’s check what we have learned so far: What is a force? © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Off to Work We Go… Work is when you use force upon an object causing the object to move. If you do not move an object, no matter how hard you push or pull, NO work is being done. Simple machines make doing work easier but they never make less work for you to do. Simple machines often help move loads from one place to another. A load is something that is carried, moved, or lifted. Let’s check what we have learned so far: What is work? © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Simple Machines There are many different kinds of simple machines. An inclined plane is a simple machine that connects a higher area to a lower area. The inclined plane allows you to move an object up or down by rolling or sliding it without lifting the object directly. A ramp is an example of an inclined plane. A wedge pushes things apart. A wedge is often used to split wood. A screw holds things together. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
A lever is a simple machine that can push down on one side to raise an object on the other side. A see saw is an example of a lever. A wheel and axle is a simple machine used to move things. A wheelbarrow has a wheel and axle so we can move it easily. A pulley is a simple machine that is used to lift things. We use a pulley to raise and lower a flag on a flagpole. Let’s check what we have learned so far: Name one example of a simple machine. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.