Question | Answer |
5 x a = 60 | a= 12 |
Conversion: 1 km equals how many meters? | 1000 |
1 minute is the same as how mant seconds? | 60 |
1 hour is how many seconds? | 3600 |
Gravity is the most obvious form of ...? | force |
Mass times acceleration Equals? | force |
Can forces cancel each other out? | yes |
when two forces cancel out | threre is no accelaration |
do forces always occur in pairs? | yes |
The acceleration due to gravity is equal to? | 9.81 meters per second squared |
Does a force do work when it causes a mass to move? | yes |
what is a lubricant? | Lubricants are fluids that hold sliding surfaces apart to reduce friction |
What is a bearing? | bearings are devices that support moving parts and allow them to move with less friction |
What is the formula for velocity? | change in distance/ the change in time |
What is gravity? | Gravity is a downward force that tries to bring all objects to the center of the earth |
does gravity always act downward on earth? | yes |
Does anything that has mass produce gravity? | yes |
how do we communicate magnitude? | magnitude is eaisly communicated with numbers. ie. 100<1000 |
how do we communicate direction of force? | We can use north,east,west, and south |