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FORCEIntPhySci
Integrated Physical Science Force
| Question | Answer |
|---|---|
| what does a force do to an object | chenges its motion; accelerates an object |
| name five ways that a force can affect the motion of an object | move an object at rest speed an object up slow an object down stop object if moving chang object's direction |
| give two examples of a contact force | book sitting on desk you standing on the ground |
| give two examples of contact forces | force due to gravity magentic forces |
| why is the unit for, N, capitilized | it was named after Isaac Newton |
| what is weight? | gravitational force- how hard gravity pulls on an object |
| what two things affect the weight of an object | mass and acceleration due to gravity |
| would you weigh mre or less on the moon? | less, moon has less gravity |
| would you weigh more or less on Jupiter | more, jupiter has more gravity |
| in which direction does gravitational force always act? | straight down |
| in what direction des normal force point | at 90 degree angle from contact surface (points up) |
| how does frictional force always act | friction acts opposite the motion of an object |
| why does friction exist | on microscopes all surfaces are rough and grab/stick to eachother |
| for an object sliding down a hill, waht force pulls the object down | gravity/ gravitational force |
| for an object slidng down a hill, what force pushes the object up a hill | frictional force (kinetic) |