EMS 6th Gr. Science Word Scramble
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Question | Answer |
speed equation | distance divided by time |
speed | the rate at which an object moves |
motion | a change in postion in a certain amount of time |
average speed | speed that changes over time |
constant speed | speed that does not change over time |
velocity | speed in a given direction |
acceleration | rate of change in velocity |
deceleration | a decrease in velocity |
momentum | depends on the mass of the object and the velocity with which it is traveling |
acceleration equation | (final velocity-orginal velocity)divided by time |
momentum | mass x velocity |
average speed | final distance divided by final time |
Types of Friction | Rolling, Fluid, Sliding |
Rolling Friction | Produced by such objects such as wheels or ball bearings. Tends to be less than sliding friction. |
Sliding Friction | When solid objects slide over each other |
Balanced Force | force acting on an object that will NOT change the object's motion |
Unbalanced Force | force that acts on an object that will change its direction |
Force | A force gives energy to an object, sometimes causing it to start moving, stop mofing or change direction. A push or a pull |
Friction | A force that acts in a direction opposite to the motion of the moving object. Friction will cause a moving object to slow down or stop. |
Fluid Friction | Occurs when objects move accross or through fluids or gases |
Sir Isaac Newton | Laws of motion |
1st law | Inertia - an object a rest remains at rest and an object in motion remains in motion unless acted upon by an unbalanced force. |
2nd Law | Force = mass x acceleration (the larger the force the larger the acceleration) |
3rd Law | Every action has an equal and opposite reaction. |
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