Forces - The Basics

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| By Hrobinson
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Quizzes Created: 15 | Total Attempts: 91,097
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Force Quizzes & Trivia

Forces - what are they? A quiz for my Year 9 students.


Questions and Answers
  • 1. 

    A force is a

    • A.

      Pull

    • B.

      Push or a pull

    • C.

      Push

    Correct Answer
    B. Push or a pull
    Explanation
    A force is either a push or a pull. This means that when an object is subjected to a force, it can either be pushed or pulled. Pushing refers to applying force in a direction away from the object, while pulling refers to applying force in a direction towards the object. Both of these actions involve the application of force, which can cause the object to move or change its state of motion.

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  • 2. 

    Forces are  measured  in Newtons. Newtons are named after...

    • A.

      The town where they were discovered (Newton, in England)

    • B.

      A scientist (Isaac Newton)

    • C.

      The 'ton'. They just put 'new' in front

    Correct Answer
    B. A scientist (Isaac Newton)
    Explanation
    The correct answer is A scientist (Isaac Newton). Newtons are named after Isaac Newton, who is known for his contributions to the field of physics, particularly his laws of motion. He formulated the laws of motion that describe the relationship between the motion of an object and the forces acting upon it.

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  • 3. 

    The direction of a force...

    • A.

      Doesn't matter at all

    • B.

      Definitely matters

    Correct Answer
    B. Definitely matters
    Explanation
    The direction of a force definitely matters. This is because the direction in which a force is applied determines its effect on an object. For example, pushing an object in one direction will cause it to move in that direction, while pushing it in the opposite direction will cause it to move in the opposite direction. Additionally, the direction of a force can also affect the magnitude and type of motion produced, such as rotation or translation. Therefore, the direction of a force is an important factor in determining its overall impact on an object.

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  • 4. 

    1 Newton is about the same as...

    • A.

      The weight of an apple

    • B.

      The weight of an adult elephant

    • C.

      The weight of an bus

    Correct Answer
    A. The weight of an apple
    Explanation
    One Newton is about the same as the weight of an apple. This means that if you were to hold an apple in your hand, you would be experiencing a force of approximately one Newton. Newton is a unit of force, and in this context, it represents the amount of force exerted on an object due to its weight. Since an apple is relatively light, it requires a force of about one Newton to counteract its weight and keep it from falling.

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  • 5. 

    A force  can change

    • A.

      The speed of an object, e.g. friction can slow down a car

    • B.

      The direction of an object, e.g. hitting a tennis ball

    • C.

      The shape of an object, e.g. sitting on a blowup mattress

    • D.

      Any of the above

    Correct Answer
    D. Any of the above
    Explanation
    A force can change the speed of an object by either increasing or decreasing it. Friction, for example, can slow down a car by opposing its motion. A force can also change the direction of an object, as seen when hitting a tennis ball with a racket, causing it to change its path. Additionally, a force can change the shape of an object, such as sitting on a blowup mattress that compresses and molds to the shape of the person sitting on it. Therefore, any of the above options are correct as a force can bring about any of these changes.

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  • 6. 

    Gravity is

    • A.

      A force that acts away from the Earth

    • B.

      A force that acts towards the centre of the Earth

    • C.

      A force that is only found on our planet, Earth

    Correct Answer
    B. A force that acts towards the centre of the Earth
    Explanation
    Gravity is a force that acts towards the center of the Earth because gravity is the force of attraction between objects with mass. The greater the mass of an object, the stronger the gravitational force it exerts. Since the Earth has a large mass, it exerts a gravitational force that pulls objects towards its center. This force is what keeps objects on the Earth's surface and causes objects to fall towards the ground when dropped. Gravity is not limited to Earth and can be found on other celestial bodies as well.

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  • 7. 

    If there was no gravity, would we weigh anything?

    • A.

      No

    • B.

      Yes

    Correct Answer
    A. No
    Explanation
    If there was no gravity, we would not weigh anything because weight is the force exerted on an object due to gravity. Without gravity, there would be no force pulling us towards the Earth, so we would not experience any weight.

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  • 8. 

    Forces that are working in the same direction ADD together, just like numbers.If I pushed a rock with a force of 2 Newtons ANDyou pushed the rock from the same side as me with a force of 3 NewtonsThe total force pushing on the rock is

    • A.

      4N

    • B.

      5g

    • C.

      5N

    • D.

      5

    Correct Answer
    C. 5N
    Explanation
    When forces are working in the same direction, their magnitudes can be added together to find the total force. In this case, one person is pushing the rock with a force of 2 Newtons and another person is also pushing the rock from the same side with a force of 3 Newtons. Therefore, the total force pushing on the rock is 2 Newtons + 3 Newtons = 5 Newtons.

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  • 9. 

    If I push a rock from one side with a  force of 3NAnd you push the  same rock from the OPPOSITE side with a force of 3N...

    • A.

      The rock will slowly move you way

    • B.

      The rock will slowly move my way

    • C.

      The rock will not move at all

    Correct Answer
    C. The rock will not move at all
    Explanation
    When two equal and opposite forces are applied to an object, they cancel each other out. In this scenario, you are pushing the rock with a force of 3N from one side, and the other person is pushing the rock with an equal force of 3N from the opposite side. Since these forces are equal and opposite, they will balance each other and result in a net force of zero. According to Newton's first law of motion, an object at rest will remain at rest unless acted upon by an external force. Therefore, the rock will not move at all.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 28, 2009
    Quiz Created by
    Hrobinson
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