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Forces Quiz Worksheet

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Forces Quiz Worksheet

Use your knowledge of forces to solve each challenge. Show working for calculations and include units where appropriate.

A. Forces in action

A force is a push or pull. Forces can change an object's speed, direction or shape.

1.The rider pushes their shoe against the ground to set the skateboard moving. Is this a contact or non-contact force? Explain what is touching.
2.Which statement best describes friction between the skateboard wheels and the path?
  • Friction is a non-contact force that always speeds the board up.
  • Friction is a contact force that acts against sliding or rolling motion.
  • Friction is the same force as gravity.
  • Friction only acts when an object is stationary.
3.The rider stops pushing and the skateboard gradually slows down. Name one force that helps slow it, and state the direction it acts relative to the motion.
4.A box has a 10 N horizontal force acting to the left and an equal 10 N horizontal force acting to the right. Are the horizontal forces balanced or unbalanced? What does this tell you about the box's motion?
5.An object has a 15 N horizontal force acting to the right and a 9 N horizontal force acting to the left. Which way is the resultant horizontal force?
  • Left
  • Right
  • There is no resultant force
  • Down
6.True or false: an object with balanced forces must be stationary. Correct the statement if it is false.
TrueFalse

B. Calculate and explain

The resultant force is the overall force after forces in opposite directions are combined. Use F = m × a, where force is measured in newtons (N), mass in kilograms (kg), and acceleration in metres per second squared (m/s²).

7.A 4 kg equipment box is pushed with a resultant force of 12 N. Calculate its acceleration. Show your working and include the unit.
8.A small electric cart has a 30 N forward force and a 18 N backward force. Calculate the resultant force and state its direction.
9.Complete the sentence: If the resultant force on a moving object is not zero, its velocity will .
10.Match each force to the best description.
  • Gravity
  • Friction
  • Normal force
  • Air resistance
  • Contact force that opposes motion between surfaces
  • Contact force from air that opposes an object's movement
  • Support force from a surface, acting at right angles to it
  • Attraction between masses; acts without objects touching
11.A 2 kg ball is dropped. Ignore air resistance. Explain why its speed increases as it falls, using the ideas of forces and acceleration.

3 printable pages

  • Forces Quiz Worksheet, page 1 of 3: A. Forces in action

    Page 1

  • Forces Quiz Worksheet, page 2 of 3: B. Calculate and explain

    Page 2

  • Forces Quiz Worksheet, page 3 of 3: 10. Match each force to the best description.

    Page 3

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