Forces
Factors of Motion
Simple Machines
Position of an Object
Humans and Machines
100
a type of force that is a result of equal and opposite forces and causes no motion
What is an balanced force?
100
surfaces rubbing together; this helps a bike stop when the brake pads rub against the tire
What is friction?
100
an object that is made up of a rope around a wheel and helps make work easier by changing the direction of the force (flag pole)
What is a pulley?
100
distance divided by time
What is speed?
100
if you want your car to have good gas mileage, this is the most important thing to think about
What is the shape of the car?
200
a force that creates motion, acceleration, or change in direction
What is an unbalanced force?
200
an object's mass combined with its speed; this increases as an object falls through the air
What is momentum?
200
an object that holds two things together and is also located at the bottom of a light bulb
What is a screw?
200
what's happening if a car begins to the pass road markers at shorter periods of time
What is speeding up?
200
when a person puts oil on the door hinges, they are trying to do this
What is decrease friction?
300
the force that cause turbines to create electricity and kites to fly
What is wind?
300
an object that is moving wants to keep moving and an object that is at rest wants to stay at rest
What is inertia?
300
a machine that is used to cut through surfaces (knife, shovel, axe)
What is a wedge?
300
how a motionless object is drawn on a distance vs. time graph
What is a straight horizontal line?
300
a type of simple machine a human might use to open an object
What is lever?
400
the force that a person must overcome to lift an object because it pulls everything to the ground
What is gravity?
400
a push or a pull
What is a force?
400
a ramp-like object that helps make work easier by increasing the distance of the intput force (stairs, wheelchair ramps)
What is an inclined plane?
400
a car's speed if it traveled 500 miles in 10 hours
What is 50 MPH?
400
the pivot point on a lever
What is a fulcrum?
500
the two main types of forces that can change the position of and motion of an object
What is pushing or pulling?
500
a machine that moves on a pivot point and helps make work easier by changing the direction of the input force (seesaw)
What is a lever?
500
If Zach is running at a speed of 8 meters per second, how far will he run in 25 seconds?
What is 200 meters?
500
an object's design related to how much air flow it lets it pass over it
What is areodynamic?
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