force, a push or pull that make an object move, motion, when something changes position, friction, the force that acts in the opposite direction of movement (could slow down or speed up), gravity, the force of attraction between two options (the force that keeps us here on Earth), magnetism, a force that can push together or pull apart certain metals, opposite poles attract each other, same poles repel each other, mass, a measurement of how much matter is in an object, speed, the rate at which moving objects travel, acceleration, any change in speech (could speed up or slow down), First Law: Inertia, Newton's law that says objects need to move or stay still, Second Law: Acceleration, Newton's law that says forces can slow down, speed up, or change the direction of an object, Third Law: Action and Reaction, Newton's law that says if one object collides with another object an opposite force will push back, Examples of friction, rubbing hands together, walking/running, rubbing balloon on hair, How does a magnet work?, It uses an invisible force to pull certain metals toward it or push other similar objects away., These are attracted to magnets., Objects made of iron or steel, such as paper clips, nails, and some metal tools., Magnetic poles, The two ends of a magnet where the magnetic force is strongest., Why is gravity helpful for us to have on Earth?, It keeps us and everything around us on the ground so we don’t float away

Force and Motion

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