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MotionSpeedAccelerati on FrictionLaws of Motion Vocabulary
When object’s distance from another object is changing AA
What is motion? A
A place or an object used for comparison to determine if something is in motion AA 200
What is a reference point? ASlide 4 200Slide 4
In physical science, a push or pull is called a _____. A 300
What is a force? A
An object’s motion is never changed if force are _______. ASlide Slide 12
What is balanced forces? A
If the net force on an object is not zero, the forces are _________. A
What are unbalanced forces? A
Calculated by dividing distance by time B
What is speed? B
Velocity includes these two pieces of information B
What is Speed and Direction? B
If a student steps 12 meters and it takes her 2 seconds, what is the student’s speed? B
12/2 = 6 m/s B
If two dogs were playing tug of war and dog A is pulling left with a force of 5 N and dog B is pulling right with a force of 2 N, what direction and with what force is the rope moved? B
5-2 = 3N Direction: Left BSlide 4 400Slide 4
The measurement that you see on the speedometer is what? B
What is instantaneous speed? B
The rate at which velocity changes CSlide Slide 26
What is acceleration? C
Acceleration happens when… C
What is a change in speed or direction? CSlide 4 200Slide 4
A boy accelerates at a rate of 3m/s/s. How fast will he be travelling at 5 seconds? (Assuming that he started at rest) CSlide Slide 30
What is 15m/s? Each second he travels his speed will increase by 3 m/s. So 3 x 5 = 15 C
DAILY DOUBLE C DAILY DOUBLE Place A Wager
What force balances that of gravity of a falling object? What stops the acceleration of a falling object? C
What is air resistance? CSlide 4 400Slide 4
How can a car that is travelling around a track change acceleration if the car’s speed does not change? C
What is its direction could change? C
Type of friction that occurs on a non-moving object D
What is Static Friction? D
Something that increases friction…. D
What is the mass of the objects or the force pressing them together? DD 200
Two things that increase the gravitation pull between two objects D
What is increased mass and decreased distance? DSlide 4 300Slide 4
A way that friction can be reduced… D
Smooth surfaces Decrease mass Change type of friction D
Air resistance is an example of ___________ friction DSlide Slide 45
What is fluid friction? DSlide 4 500Slide 4
Newton’s first law of motion E 100
Object in motion stays in motion Object at rest stays at rest Unless acted on by outside force E
Newton’s 2 nd Law E
Force = Mass x Acceleration The more massive an object and the faster you wish it to travel the more force must be applied. E
Newton’s Third Law of Motion E
For every action there is an equal and opposite reaction E
A _____ is an object that is thrown E
What is a projectile? E
Bubbles are round because …. E
What is..because fluids exert pressure evenly in all directions E
The downward force acting on an object in free fall is ____. F 100
What is gravity? F
The SI unit for distance F
What is meter? F
The SI unit for Force F
What is a Newton? (N) F
Force that two objects exert when in physical contact with each other F
What is Friction? F 400
Tendency of an object to resist change in motion F
What is inertia? F
The Final Jeopardy Category is: Please record your wager. Click on screen toSlide 67 beginSlide 67
How does your weight and mass change in space? And why? Click on screen to continuecontinue
Weight—Decrease do to lessened effect of Earth’s gravitational pull Mass—remains constant because you still have the same amount of substance as you did on Earth Click on screen to continueto
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