SCIENCE

• Force

  A powerful energy or influence that can cause an object to move
• Pulling

  The act of applying force to draw something towards oneself
• Pushing

  The act of applying force to move something away from oneself
• Vector

  A quantity that has both magnitude and direction, represented by an arrow
• Friction

  The force that resists the motion of an object when it is in contact with another surface
• Average Speed

  A measure of the overall rate of motion of an object over a specific period of time
• Displacement

  The distance and direction of an object's change in position from its starting point
• Velocity

  The change of an object's position with respect to time, including both speed and direction
• Motion

  The process of changing position or place
• Meter

  A unit of length in the metric system, equal to 100 centimeters
• Speed

  The rate at which an object covers distance over a period of time
• Scalar

  A physical quantity that is fully described by a magnitude or numerical value alone, without any direction
• Acceleration

  The rate of change of velocity over time
• Force


  A push or pull needed to start an object moving or more accurately, to make things change their motion (the way they are moving)
• Types of force

  • Contact Force
  • Non-Contact Force
• Contact Force

  Forces where an object needs physical contact to another object
• Applied force

  • A force applied to an object
• Frictional force

  • A shear reaction force
• Normal force

  • A force perpendicular to the surface in contact
• Tension force


  • A force that pulls on an object
• Force

  The push and pull applied to an object, an influence that changes the motion of an object
• Applying force to an object


  1. Object remains stationary

  2. Apply force to move object

  3. Apply force in opposite direction to stop object
• Force

  • Magnitude (strength)
  • Direction
  • Point of application
  • Line of action
• Magnitude of force

  How strong the force is, affects the velocity/movement of the object
• Units of force
• Direction of force

  The points to where the object goes
• Point of application

  The location where the force is applied
• Line of action

  The straight line passing through the point of application and parallel to the direction of the force
• Types of force

  • Contact forces
  • Non-contact forces
• Contact forces

  Forces where an object needs physical contact to another object
• Examples of contact forces

  • Applied force
  • Friction
  • Normal force
  • Tension force
• Applied force


  Force exerted by a person or object towards another person or object
• Friction force

  Force that goes against the direction of the applied force, causing the object to slow down
• Normal force

  Force that acts perpendicular to an object
• Tension force

  Force applied to string, rope, chain, cable, resisting being stretched
• Non-contact forces are forces that do not require physical contact between objects