7th Grade Science Review

Who is your science teacher?

• Mr. Kimble

• Ms. Roberts

• Mr. Prichard

• Mrs. Diaz

Mathematician, Astronomer, & Physicist who discovered gravity, laws of motion, calculus, reflecting telescope.

• Isaac Newton

• Marie Curie

• Stephen Hawkings

• AlexanderFleming

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A student inflates a balloon attached to a plastic straw. A string is threaded through the straw and tied to opposite ends of the room. When the air in the balloon is released, the balloon travels the length of the string. Which of Newton's laws explain this?

• The law of action-reaction

• Newton's law of magnetism

• The law of force and acceleration

• The law of gravity

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What is the standard unit force is measured in?

• Newtons
• pounds
• grams
• meters

If a 40 kg student is pushed in a rolling chair with a force of 30 N, what is the student's acceleration?

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A car driving down the road runs out of gas. Which of Newton's laws explains why the car continues to move without gasoline? Be able to explain why. This will be a constructed response question.

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates

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Which of the following would be a good example of Newton's third law of motion?

• An air freshener hanging from the rear-view mirror of a car hangs still while the car moves forward with a constant acceleration

• A carbon dioxide-fueled rocket launches upward into the air as carbon dioxide gas accelerates toward the ground below the rocket

• Two balls of different masses are rolled with the same force, resulting in the ball with larger mass stopping faster than the ball with the smaller mass.

• All of the above

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What Newtons law does this picture represent

• Newtons 2nd law 
• Law of gravity 
• Newtons 1st law
• Newtons 5th law

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Zoom into the image to read the question and answer

• A

• B

• C

• D

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