click below
click below
Normal Size Small Size show me how
Forces & Motion
Test 2 (Lessons 5, 6, 8, 9, 10, & 11)
Term | Definition |
---|---|
Force | A push or pull |
Balanced Force | All forces acting on an object result in the object staying at rest or moving at a constant speed in the same direction. |
Unbalanced Force | When all forces acting on an object result in a change of motion. SO- if it's moving it changes speed or direction, If it's at rest, it brgins to move. |
Unbalanced Force | Two people are arm wrestling and one wins. This is an example of what kind of force? |
Balanced Force | The tortoise walked a steady pace in the race. This is an example of what kind of force? |
Simple machines | A device that makes work easier to do by changing the amount, direction, or distance of the force. |
load | The object to be moved by the simple machine. |
Effort force | The force exerted (used) by the user of the simple machine. |
force on the load | The force exerted (used) by the |
mass | The measure of the amount of matter (stuff) in an object. |
weight | The measure of the amount of gravity pulling on an object. |
Point of reference | A background of non-moving object in the background used in describing the motion of another object. |