RED-KEY 1. All objects fall to Earth at the same rate due to gravity in the absence of air resistance. 2. They would hit the ground at the same time. 3.

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Presentation transcript:

RED-KEY 1. All objects fall to Earth at the same rate due to gravity in the absence of air resistance. 2. They would hit the ground at the same time. 3. A center-seeking force that causes objects to move in a circle. 4. When the only force acting on the object is gravity. 5. An object that experiences weightlessness is in freefall.

BLUE-KEY 1. Free fall and velocity 2. Terminal Velocity is when the acceleration due to gravity and air resistance are equal. 3. The air resistance prevents to from accelerating further so it maintains a constant speed. 4. Newtons 5. Kilograms

GREEN-KEY 1. Projectile motion is curved line based on gravity and velocity close to the surface of the Earth. 2. Horizontal and Vertical Motion 3. Shooting a Bow and Arrow (or a Monkey ;)) 4. Horizontal-velocity (from being thrown, shot from a cannon etc, Vertical-gravity 5. Only the force of gravity can be acting on the object – no air resistance

ORANGE-KEY 1. Inertia is the resistance of an object to change its motion. 2. An object at rest will stay at rest and object in motion will stay in motion at a constant speed in a straight line, unless acted on by an outside force. 3. More mass means more inertia 4. Friction is a force that opposes motion. 5. A hockey puck sliding on the ice until friction causes it to slow down and stop.

PINK-KEY 1. Newtons 2. m/s/s 3. Acceleration is dependent on the amount of force and mass applied to the object 4. F=m(a) 5. Speed, Size, and Shape

PURPLE-KEY 1. The table pushing back on the book. 2. For every action there is an equal and opposite reaction. 3. Air comes out of the balloon at one end and moves the balloon in the opposite direction in proportion to how much air is in it. Etc. The recoil of a golf club after hitting a golf ball. 4. m/s + direction 5. Air resistance slows down objects moving through it.

YELLOW-KEY 1. Multiply 9.9 m/s/s times the 6 seconds to hit the ground = 58.8 m/s down 2. The circular motion of an object around another object based on gravity pulling on it and the object’s forward motion. 3. They are in free fall. 4. Objects with more mass need more force to move them 5. Newton’s 1st law of motion – in motion, stays in motion unless acted on by an unbalanced force.

BROWN-KEY 1. 400 meters 2. 330 Newtons .33 seconds .22 m/s/s -.68 m/s/s