what is a force

• What is the unit used to measure force?

  Newton (N)
• How can forces be categorized?

  Forces can be categorized as contact forces and non-contact forces.
• What is a force?

  A force is a push or a pull between two objects.
• What are the two groups of forces and their definitions?

  • Contact Forces: Forces where the two objects are physically touching each other.
  • Non-Contact Forces: Forces where the two objects are separated but still exert a force on each other.
• Name three examples of contact forces.

  Push, pull, and friction.
• Name three examples of non-contact forces.

  Magnetic force, electrostatic force, and weight (gravity).
• What is the force that acts on an object due to the Earth's gravitational field called?

  Weight.
• What is gravity?

  Gravity is the fundamental force that causes all objects with mass (or energy) to attract each other.
• How can you measure force using a Newton meter?

  • Use a Newton meter to measure the force needed for various activities.
  • Record the force in Newtons (N).
• What is drag in terms of forces?

  Drag refers to water resistance and air resistance acting on an object.