Understanding Work

Holly is pushing a box across the floor. In which direction must the box move for work to be done?

• Opposite to the force

• In the direction of the force

• Perpendicular to the force

• Randomly

Which of the following is an example of work being done in a real-world scenario?

• Summer holding a book still

• Karissa pushing a box across the floor

• Dru sitting on a chair

• Mhia standing still

Karissa is pushing a shopping cart at the grocery store. What must happen for work to be considered as done?

• The cart must remain stationary

• The cart must move in the direction of the force

• The cart must move in any direction

• The cart must move opposite to the force

During a science experiment, Landen and Summer are measuring how far a toy car moves when pushed. What does displacement refer to in this context?

• The time taken to move

• The distance the toy car moves

• The speed of the toy car

• The weight of the toy car

Anika and Arjun are pushing a car in neutral gear on a flat road. If the car does not move, what is the work done by Anika and Arjun?

• Zero

• Equal to force

• Equal to displacement

• Infinite

Which scenario involves Landen lifting an object vertically?

• Scenario 1

• Scenario 2

• Scenario 3

• None of the above

Tags

NGSS.MS-PS2-4

When is work done according to Karissa and Dru's science project?

• When an object is at rest

• When a force causes an object to move a distance

• When an object is heated

• When a force is applied without movement

When Abigail pushes a shopping cart across the supermarket aisle, what is the direction of force and displacement in positive work?

• Same direction

• Opposite direction

• Perpendicular direction

• No direction

Emma and Landen are moving a box across the floor. What is the displacement of the box in the problem?

• 5 meters

• 10 meters

• 50 meters

• 100 meters

Emma pushes a box across the floor. What formula is used to calculate the work done by Emma?

• Work = Force + Displacement

• Work = Force / Displacement

• Work = Force × Displacement

• Work = Force - Displacement