3rd Grade – Newton’s 3 Laws of Motion and Scientific Method
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What is GRAVITY?
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GRAVITY is the force that pulls things down to the ground.
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What is FORCE?
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A FORCE is always a push or a pull.
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Why did the paperclip attached to the parachute fall more slowly than the plain paper clip?
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Because of a force called AIR RESISTANCE. (The opposition towards the motion of a body by the air)
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What is FRICTION?
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FRICTION is the force that slow things down or stops them.
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What is Isaac Newton's 1st Law of Motion?
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An object in motion stay in motion and an object at rest stays at rest unless acted upon by an outside force.
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Give an example of Newton's 1st Law?
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A soccer ball sitting on a field will stay there until something comes along to move it like the wind or a kick.
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What is Isaac Newton's 2nd Law of Motion?
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The weight of an object does not have an effect on the speed with which it falls. (All objects fall at the same speed)
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What is Isaac Newton's 3rd Law of Motion?
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For every action there is an equal and opposite reaction.
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Give an example of Newton's 3rd Law?
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The experiment with the "balloon jets" proved Newton's 3rd Law when the balloon with the most air traveled the furthest.
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Which one of Newton's Laws of Motion did the "CARD SHARKS" lab demonstrated?
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Newton's 1st Law
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Which one of Newton's Laws of Motion did the "BALLOON JETS" demonstrate?
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Newton's 3rd Law
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Which one of Newton's Laws of Motion did the "LOOK OUT BELOW" lab demonstrate?
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Newton's 2nd Law
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What is the force that pulls things down to the ground called?
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Gravity
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What is the force that slows things down or stops them called?
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Friction
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What force causes the paper clip attached to the parachute to fall more slowly than the plain paper clip?
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Air resistance
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List the 5 steps of the scientific method?
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Queen Penelope picks out clothes. Q = Question P = Prediction P = Procedure O = Observation C = Conclusion
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What is the first step of the scientific method called?
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Question
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What is a hypothesis?
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An educated guess.
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What is the part of the scientific method called where you form a hypothesis?
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Prediction. It is the second step.
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What is the part of the scientific method called where you tell what you did?
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Procedure
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What is the part of the scientific method called where you take notes and record information?
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Observation
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What is the part of the scientific method called where you explain why something happened?
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Conclusion
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A book left on the table overnight is there when you return in the morning. This is an example of which Newton's Law?
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1st
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A space shuttle propels gas particles out the back of the shuttle and is able to travel forward through space. This is an example of which Newton's Law?
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3rd
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You drop a ping-pong ball and a golf ball. Both hit the floor at the same time. This is an example of which Newton's Law?
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2nd
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A balloon flies forward when air quickly escapes from it. This is an example of which Newton's Law?
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3rd
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A soccer ball continues to roll until it hits something. Which Law is it?
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1st
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The clothes you left on the floor are still there when you come home from school. Which Law is it?
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1st
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You and your dad jump off a wooden box and land at the same time. Which Law is it?
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2nd
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The bike you are riding hits a hole and stops quickly, but you fly forward over the handlebars. Which Law is it?
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1st
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Predict what motion will happen according to Newton's 1st Law: If you leave a cookie on a plate and there is no one else in the house, where will the cookie be in an hour?
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Still on the plate
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Predict what motion will happen according to Newton's 1st Law: If you were in outer space and threw a baseball, what would happen?
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It would stay in motion
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Predict what motion will happen according to Newton's 2nd Law: If your little brother drops a book and a cardboard box at the same time, what will happen?
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They would land at the same time
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Predict what motion will happen according to Newton's 3rd Law: Two ice skaters glide into each other at full speed. What will happen?
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They will bump and fall down
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Predict what motion will happen according to Newton's 3rd Law: If you let the air out of a balloon, what will happen to the balloon?
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It will deflate and go the opposite direction than the air
