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Quiz Set 2: Advanced Concepts in Forces and Motion

Quiz by Mr.MD Showket Hasan

Grade 8
Science
Thailand Core Curriculum

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20 questions
Show answers
  • Q1
    A car is being pushed by two people. If one person pushes with a force of 100 N and the other with a force of 150 N in the same direction, what is the total force acting on the car?
    150 N
    50 N
    100 N
    250 N
    30s
    SC8.FM.1
  • Q2
    Two tugboats are pulling a ship in opposite directions. Tugboat A pulls with a force of 500 N to the left, and Tugboat B pulls with a force of 300 N to the right. What is the resultant force, and in which direction does the ship move?
    800 N to the left
    200 N to the right
    500 N to the right
    200 N to the left
    30s
    SC8.FM.1
  • Q3
    A 10 kg box is being pulled to the right with a force of 60 N, but friction provides a 20 N force to the left. What is the net force on the box, and what will be its acceleration?
    20 N, 2 m/s²
    60 N, 6 m/s²
    40 N, 4 m/s²
    80 N, 8 m/s²
    30s
    SC8.FM.1
  • Q4
    Sarah and Tom are moving a heavy sofa. Sarah pushes with a force of 120 N, and Tom pulls with a force of 80 N in the same direction. What is the total force acting on the sofa?
    120 N
    80 N
    40 N
    200 N
    30s
    SC8.FM.1
  • Q5
    A skateboarder pushes off the ground with a force of 60 N to move forward, but the frictional force acting backward is 20 N. What is the resultant force acting on the skateboarder?
    40 N backward
    40 N forward
    80 N forward
    20 N forward
    30s
    SC8.FM.1
  • Q6
    A box is being pulled by a force of 50 N horizontally, while gravity pulls it downward with 100 N. How much is the resultant force if the two forces are perpendicular?
    120 N
    150 N
    110 N
    70 N
    30s
    SC8.FM.1
  • Q7
    In a tug-of-war, Team A pulls with a force of 300 N, and Team B pulls with a force of 300 N in the opposite direction. What happens to the rope?
    It moves toward Team A
    It does not move
    It moves up and down
    It moves toward Team B
    30s
    SC8.FM.1
  • Q8
    A car is accelerating at 3 m/s², and its mass is 1000 kg. What is the force exerted by the engine?
    5000 N
    2000 N
    3000 N
    1000 N
    30s
    SC8.FM.1
  • Q9
    Two forces, 5 N and 12 N, act on an object at a right angle. What is the magnitude of the resultant force?
    17 N
    13 N
    7 N
    10 N
    30s
    SC8.FM.1
  • Q10
    A 5 kg object is subject to a net force of 25 N. What is its acceleration?
    10 m/s²
    25 m/s²
    5 m/s²
    15 m/s²
    30s
    SC8.FM.1
  • Q11
    If an object is moving with a constant speed, what can we infer about the forces acting on it?
    They are balanced
    They are decreasing
    They are increasing
    They are unbalanced
    30s
    SC8.FM.1
  • Q12
    A truck applies a braking force of 2000 N to stop. If the mass of the truck is 1000 kg, what is the deceleration?
    3 m/s²
    1 m/s²
    2 m/s²
    4 m/s²
    30s
    SC8.FM.1
  • Q13
    Which of the following best describes frictional force?
    It acts perpendicular to the direction of motion
    It acts in the direction of motion
    It acts opposite to the direction of motion
    It increases motion
    30s
    SC8.FM.1
  • Q14
    In a scenario where two forces of 8 N and 6 N act in opposite directions, what is the net force?
    6 N
    2 N
    8 N
    14 N
    30s
    SC8.FM.1
  • Q15
    A box with a mass of 10 kg is on a surface with a frictional force of 20 N. If you push with 20 N, what will happen to the box?
    It will move to the left
    It will accelerate upwards
    It will remain stationary
    It will move to the right
    30s
    SC8.FM.1

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