mechanical devices

• What is motion defined as?

  When an object moves its position over time
• What are the four types of motion?

  • Rotary motion
  • Linear motion
  • Oscillating motion
  • Reciprocating motion
• What is rotary motion?

  Movement in a circular path
• What is linear motion?

  Movement in a straight line
• What is oscillating motion?

  Movement back and forth in a circular path
• What is reciprocating motion?

  Movement back and forth in a straight line
• What is the formula for rotational speed?

  Rotational speed = number of revolutions / time taken
• What is the formula for speed?

  Speed = distance travelled / time taken
• What does frequency refer to in oscillating motion?

  Number of oscillations per time taken
• What is a lever?

  • A rigid bar
  • Pivots on a fulcrum
• What is a fulcrum?

  The pivot point on a lever
• What is effort in the context of a lever?

  The input force on a lever
• What is load in the context of a lever?

  The output force from a lever
• How is load calculated in a lever?

  Load = Input arm length / output arm length
• What does the term "effort" refer to in lever mechanics?

  Effort is the input force applied