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| The stonger 2 objects are the stronger the___________________ _____________ |
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| Energy at rest due to position or motion |
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| _________ _________ have more friction |
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| _________ _________ made a discovery regarding the pull of gravity by dropping objects of equal weights |
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| What did you learn about roller coasters? |
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| 3 sets of wheels, 1st hill is the highest |
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| Property that resists change in velocity |
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| 20m 12s ?; 100m ? 2073m/s; ? 201s 5m/s |
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| Energy is changed into heat through friction |
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| A force of gravity on an object on earth |
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| The pull is always at the ____________ of the planet |
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| What 2 science concepts cause funny feelings in your stomach? |
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| The more_______________ the more friction |
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| The way an object is traveling |
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| The largest planet has _______________ gravity |
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| What is Newton's 1st law of motion |
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| An object at rest will stay at rest, an object in motion will stay in motion in a straight line at a constant speed unless acted upon by a net force |
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| Roller coster #1, 2, 3, 4, 5. Most friction is where and potential, and kinetic.What percent are they? |
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| #1 has most potential energy, 2 50% 5%, 3 0% 100%, 4 50% 50%, 5 is 0% 0% (turned to heat energy) |
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| The larger the objects are the stronger the _______________ __________ |
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| If a bowling ball and an apple are dropped from 20 meters up, which would hit the ground first? |
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| Both would hit the ground at the same time |
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| A force that opposes motion between 2 objects that are touching |
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| The 2 forces that affect you every day without you knowing, what are they? |
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| Every piece of matter has ___________; it always pulls |
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| The pulling force all objects exerts on other objects |
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| Rate of change of an object's velocity |
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| Change in an object's position |
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| Moves the same distance during each second |
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| The amount of matter contained in an object |
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| The speed and direction of an object |
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| The friction between objects and the air |
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| What is the formula for finding speed? |
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| If Chris traveled 60 KM in 2 hours, what was his speed? |
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| Kara traveled 50 M in 15 seconds, what was her speed? |
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| Which object is easier to move, an empty box or one filled with marbles? Why? |
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| An empty box because it has less mass |
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| Which would have more momentum (or "bashing power") a full truck or an empty truck? Why? |
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| A full truck because it has more mass |
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| Give 2 examples of Newtons 1st law of motion in daily life. Be specific. |
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Rest- A pin unknocked by a bowling ball. A book will sit on the desk until someone moves it.
Motion- Kicking a kickball, a bowling ball knocking the pins |
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| What is Newton's 2nd law of motion? |
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| An acceleration of an object depends on the net force, acting on the object and the mass of the object |
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| Give two examples of Newton's 2nd law of motion. Be specific. |
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Net force- It would hurt less to have a ping pong ball thrown gently at you than going @ full speed
Mass- Rubber ball than a bowling ball on toe- mass. |
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| What is Newton's 3rd law of motion? |
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| For every action, there is an equal but opposite reaction. |
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| Give two examples of Newton's 3rd law of motion. Be specific. |
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Push- Book pushes on desk and desk pushes book.
Pull- Pull right on the pencil and the pencil moves left on my hand |
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| If you hit a tennis ball against the wall with a 5 N of force and then hit that same tennis ball with 20 N of force, which hit would have a greater acceleration? |
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| 20 N because it has a larger net force |
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| When you walk down the hallway at school, your feet push on the ground. What force in return acts on your feet? |
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| The ground pushes back up on your feet. |
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| How did gravity affect the pool ball, ping pong ball, and the golf ball as they traveled down the ramps in the acceleration lab? |
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| The ramp is inclined so it gave acceleration to the balls. (pulled down on ramp, ramp pushes ball up, Newton's 3rd law of motion.) |
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| What is the relationship between mass and distance with gravity? |
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Distance - As objects gets futher apart gravity is felt less. As they get closer together, gravity is felt more.
Mass- The larger the mass, the larger the gravity. The smaller the mass, the smaller the gravity |
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| Make a list of 5 examples where friction is small between 2 objects. |
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| Magnet, ice skates on ice, marble floor, little toy car, anything with little masses, little forces, and smooth surfaces. |
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| Make a list of 5 examples where friction is large between two objects. |
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| Anything with large masses, lage forces, and rough surfaces. |
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| What is the relationship between mass and inertia? |
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| As mass goes up, inertia goes up. Mass goes down, inertia goes down. |
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| If an object is sitting on the ground with 4 N of force you pull up on the object with 6 N of force, what will happen? |
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| It willl move up with a force of 2 N. |
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| List the 5 parts of the scientific method, in order and spelled correctly. |
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1. Question
2. Hypothesis
3. Procedures/Materials
4. Data
5. Conclusion |
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| List the 4 parts of the conclusion. |
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1. Ties to Daily Life
2. Hypothesis right/wrong
3. Lab Errors
4. Learned/ Observed/ Suprised |
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| If you drop a marble and a bowling ball from 3 meters up, which will hit the ground first? |
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| Both would hit the ground at the same time. |
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| Which would feel the affects of Earth's gravity more, an object on Earth or one far in space? |
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| An object on Earth because it is closer to the ground, making it make more gravitational force. |
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