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Newton’s Quiz
Also Bernoulli I guess
Term | Definition |
---|---|
State the law: Your friend slams on the breaks causing your head to hit the dash. | 1st Law |
State the law: You have to throw a heavy ball with more force than a lighter ball to get it to travel at the same speed. | 2nd Law |
State the law: You pull the rug out from under your cat, but the cat stays where it is. | 1st Law |
State the law: You're being pulled down by the earth, but you are pulling the earth up at the same time. | 3rd Law |
State the law: If you're sending a rocket to mars, you don't have to keep the engine going the whole time....just to begin with. Why? | 1st Law |
State the law: The acceleration would be greater for a object with less mass than an object with more mass if both objects were subjected to equal forces. | 2nd Law |
State the law: When a semi truck traveling at 30 mph east collides with a prius (small car) going 30 mph west, the net movement is east. | 3rd Law |
State the law: p=mv | 3rd Law |
State the law: F=ma | 2nd Law |
If net force acting on object is 0, then the force is considered to be... | Balanced |
Which type of force(s) will cause a change in an object's motion? | Unbalanced Forces |
Newton's third law states that any action will have a(n) _______ and ______ reaction | Equal and Opposite |
When a gun fires ammunition we observe Newton's third law, which force is the reaction force? | The gun moving backwards |
According to Newton's first law, an object that is moving will keep moving until... | Another force acts on it |
A _ is a push or pull. | Force |
How is hitting your head with a soccer ball a good example of Newton’s 3rd Law? | Your head and the ball are exerting an equal force on one another |
The faster a fluid moves, the lower the pressure is in the moving fluid compared to the fluid not moving as fast. This is called: | Bernoulli's Principle |
To generate lift, a blade is angled so the _________ pressure air moves under the blade. | High |
When a heavy football player and a light one run into each other, who exerts more force? | Their force is equal |
A baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat? | 100N, Opposite Direction |
A bus hits a bug and the bug splatters on the windshield, which force is greater? | The forces are equal |
If you double the mass of an object but apply the same force apply on it, the acceleration will __________________. | Cut in Half |
What kind(s) of objects have inertia? | All objects that have mass |
According to Bernoulli's principle, by curving the blades, the wind is split so _______ speed wind travels above the blade and _________ speed wind travels below the blade. This causes more pressure ________ the blade generating _______. | High; Low; Under; Lift |
When driving a car forward, in which direction is the friction force? | Behind you |
Any value that has the unit labeled m/s2 represents the ___________________________. | Acceleration |
A car speeding up to get through a yellow traffic light is an example of .... | Acceleration, Unbalanced Forces |
What law does this equation apply to? Acceleration = Net Force over Mass | Newtons 2nd Law |
What is a fluid? | A non-solid state of matter as a gas or a liquid |
What law of motion does a person jumping off a boat and the boat being pushed back represent? | Newton’s 3rd Law |
Why is the top of an airplane wing curved? | To create an area of low pressure above the wing |
The reason why any car crash is more of an example of Newton's 3rd Law rather that his 2nd Law is: | His 2nd law deals with acceleration, and cars that are not accelerating can still have momentum. |
According to Bernoulli's Principle, when the wind speed is high, wind pressure is ________ | Low |