Unit 1: Forces

Force

• a push or pull. required to change the motion of an object

• caused by different physical mechanisms in which the forced provided is in contact with the body

• (action at a distance) has an effect on an object without physically touching it

contact forces

• caused by different physical mechanisms in which the force provided is in contact with the body

• a push or pull. required to change the motion of an object

• (action at a distance) has an effect on an object without physically touching it

• Forces that act in water

Non contact forces

• A push or pull. required to change the motion of an object

• caused by different physical mechanisms in which the force provided is in contact with the body.

• (action at a distance) has an effect on an object without physically touching it

applied (pushing)

• A force that pulls an object towards another object
• A force that pushes an object away from another object
• A force that doesn't affect the motion of an object
• A force that changes the direction of an object

pulling (tension)

• Force exerted on a body to stretch it
• Force exerted on a body to compress it
• Force exerted on a body to rotate it
• Force exerted on a body to move it horizontally

frictional (air resisting)

• A force that opposes motion
• A force that promotes motion
• A force that has no effect on motion
• A force that only affects objects in water

Spring force

• A force that changes with the displacement of the spring
• A force that is constant regardless of the displacement of the spring
• A force that is always directed towards the center of the spring
• A force that is always directed away from the center of the spring

Normal reaction

• A force exerted by a surface perpendicularly
• A force exerted by a surface horizontally
• A force exerted by a surface diagonally
• A force exerted by a surface vertically

gravitational

• A force that pulls objects towards each other
• A force that pushes objects away from each other
• A force that makes objects float
• A force that stops objects from moving

magnetic force

• A force that attracts or repels objects due to their magnetic properties
• A force that only repels objects
• A force that only attracts objects
• A force that neither attracts nor repels objects