Show:
Speed/Distance/Time
Forces
Newtons First Law/ Inertia/Speed/Distance/Time
Simple Machines
More Simple Machines
100
What is speed?
The distance an object travels in a unit of time
100
What are Newtons?
Unit used to measure force
100
What is one part of Newtons First Law?
An object at rest will stay at rest unless acted upon by an unbalanced force.
100
What are all the simple machines?
lever, inclined plane, wedge, screw, wheel and axel, pulley
100
What is a wedge?
It is a device that is thick at one end and tapers to a thin edge at the other end. A wedge is a type of an inclined plane.
200
What is velocity?
Speed in a given direction
200
What is an unbalanced force?
It causes an object to start moving, stop moving, or change directions
200
What is the other part of Newtons First Law?
An object in motion will stay in motion unless acted upon by an unbalanced force.
200
What is the fixed point that a lever pivots around?
Fulcrum
200
What are 3 examples of a wedge?
A door stopper, knife, and an end of a fork
300
How do you calculate average speed?
Add all distances together, add all time together
300
What is a balanced force?
Do not cause change in motion Equal forces acting on one object in opposite directions Equals 0 N
300
What is inertia?
The tendency of an object to resist change in motion
300
What are 4 examples of a lever?
Scissors, pliers, seesaw, wheelbarrow, shovel, spoon, baseball bat, hockey stick, light switch
300
What is a pulley?
A pulley is made of a grooved wheel with a rope or cable wrapped around it.
400
What is a force?
Push or Pull
400
What does drawing with arrows show?
It shows the strength of the force.
400
What are the units for distance?
Kilometers, Meters, Centimeters, Millimeters
400
What is an inclined plane?
An inclined plane is a flat, sloped surface. It allows you to exert your force over a longer distance.
400
What is a compound machine?
A machine with two or more simple machines
500
What is a slope?
The steepness of a line on a speed graph
500
What is a net force?
Total or combination of all forces acting on an object
500
What are the units for time?
Seconds, Minutes, Hours
500
What are 4 examples of an inclined plane?
Ramp, steps, staircase, slide, ladder, roller coaster, binder
500
What are input and output forces?
Input Force- The force applied to the machine Output Force- The force made by the machine