Forces

• What is the equation for forces?

  speed= distance(divide) time
• what is some effects of forces?

  start or stop moving, change of shape or size
• how do drag and friction forces occur?

  created when an object is pulled on a bumpy surface
• what is the turning effect of a force?

  it's called the moment of force and acts like a pivot what turns clockwise and anti-clockwise
• What is an interaction pair?


  forces are the interaction between objects, they always occur in pairs
• an example of an interaction pair?

  the force of a ball on a foot and the push force of the foot on the ball
• what is hooks law?

  more force=more extension
• what are some materials that follow hooks law?

  trampolines, sofas, mattresses
• what is 3 contact forces?


  drag, reaction, weight
• what are 3 non-contact forces?

  gravity, magnetic, electrostatic