P7.1 Work Done

• Work done is defined as the energy transferred by applying a force over a displacement.


  True
• Force is measured in Newtons (N) and displacement in meters (m).


  True
• Lifting a 1 kg book 1 meter upward requires approximately 10 Joules of work.


  True
• Match the concept with its definition:

  Work Done ↔️ Energy transferred by force causing displacement

  Force ↔️ The push or pull acting on an object

  Displacement ↔️ The change in position of an object
• What is a force defined as in physics?

  A push or pull
• What is the formula for calculating work done?

  Work done = Force × Distance
• What is the standard unit for measuring work done?

  Joule
• Positive work is done when force and displacement are in the same direction
• What is the definition of work done in physics?

  Energy transferred by a force
• Potential energy is stored energy, while kinetic energy is the energy of motion
• Steps to solve work done calculations:

  1️⃣ Identify the force value in Newtons

  2️⃣ Identify the displacement value in meters

  3️⃣ Apply the formula: Work done = Force × Displacement

  4️⃣ Calculate the work done in Joules
• What two factors does the amount of work done depend on?

  Force and displacement
• Work done is directly proportional to both force and displacement.


  True
• What are two types of energy mentioned in the context?

  Potential and kinetic
• What happens to an object's energy when positive work is done on it?

  Increases
• One Joule is equivalent to one Newton-meter.


  True
• What is the capacity to do work called?

  Energy
• What is the definition of work done in physics?

  Energy transferred by a force
• Work done is a specific instance of energy transfer, whereas energy is a more general concept.


  True
• Force is measured in Newtons
• In the work done formula, 'm' stands for meters
• Negative work is done when force and displacement are in opposite
• What does work done in physics refer to?

  Energy transferred by force
• Match the concept with its unit:

  Work done ↔️ Joules (J)

  Force ↔️ Newtons (N)

  Displacement ↔️ Meters (m)
• What is the formula for calculating work done?

  Force × Displacement
• What is positive work done?

  Force and displacement same direction
• What is the work done if a force of 50 N is applied to move an object 5 m?

  250 Joules
• Displacement refers to the change in the position of an object
• Match the concept with its symbol and unit:

  Work done ↔️ W, Joules (J)

  Force ↔️ F, Newtons (N)

  Distance ↔️ s, Meters (m)
• 1 Joule is equal to 1 Newton multiplied by 1 meter.


  True
• Negative work decreases the energy of an object.

  True
• Describe an example of positive work being done in everyday life.

  Lifting a barbell during exercise
• What is the relationship between work done, force, and displacement?

  Work done = Force × Displacement
• What is work done in physics defined as?

  Energy transferred by force
• Positive work is done when the force and displacement are in the same direction
• Examples of work done include lifting a weight or climbing stairs
• Work done is defined as the energy transferred by a force over a displacement.
• Match the type of work with its effect on energy:

  Positive Work ↔️ Increases energy

  Negative Work ↔️ Decreases energy
• Energy is defined as the capacity to do work
• Order the following real-life applications of work done based on increasing kinetic energy:

  1️⃣ Climbing stairs

  2️⃣ Pushing a cart

  3️⃣ Riding a bike