Quiz Sur LA Physique Pour Des élèves De Secondaire 4

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| By Nichar3
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Nichar3
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Quizzes Created: 1 | Total Attempts: 268
Questions: 14 | Attempts: 268

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Quiz Sur LA Physique Pour Des élèves De Secondaire 4 - Quiz


Questions and Answers
  • 1. 

    C'est quoi la première loi de Newton?

    • A.

      Loi 101

    • B.

      Principe de l'inertie

    • C.

      Loi sur les figues newtons

    • D.

      Principe des actions réciproques

    Correct Answer
    B. Principe de l'inertie
    Explanation
    The correct answer is "Principe de l'inertie." The first law of Newton, also known as the law of inertia, states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction unless acted upon by an external force. This principle explains the concept of inertia, which is the tendency of an object to resist changes in its motion.

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  • 2. 

    La masse et le poids se mesure en kg.

    • A.

      Vrai

    • B.

      Faux

    Correct Answer
    B. Faux
    Explanation
    La masse se mesure en kg mais le poids se mesure en Newtons (N), le poids est mesuré avec in peson tandis que la masse avec une balance.

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  • 3. 

    C'est quoi le type d'énergie à chaque point?

    • A.

      Potentielle-Cinétique-Potentielle

    • B.

      Cinétique-Potentielle-Potentielle

    • C.

      Potentielle-Potentielle-Potentielle

    • D.

      Cinétique-Potentielle-Potentielle

    Correct Answer
    A. Potentielle-Cinétique-Potentielle
    Explanation
    The correct answer is Potentielle-Cinétique-Potentielle. This sequence represents the energy transformation at each point. Potentielle energy refers to the potential energy stored in an object due to its position or configuration. Cinétique energy is the energy of motion. The sequence Potentielle-Cinétique-Potentielle indicates that the energy starts as potential energy, then converts to kinetic energy, and finally converts back to potential energy.

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  • 4. 

    La loi de la conservation de l'énergie dit que l'énergie ne peut être créé ni détruit, elle peut seulement être transformée ou transférée.

    • A.

      Vrai

    • B.

      Faux

    Correct Answer
    A. Vrai
    Explanation
    « Rien ne se perd, rien ne se crée, tout se transforme ! ».

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  • 5. 

    La masse est la

    Correct Answer
    quantitée de matière contenue dans un corps
    quantité de matière contenue dans un corps
    quantitée de matière contenue dans un corps qui se mesure en kg
    Explanation
    The correct answer is "quantitée de matière contenue dans un corps, quantité de matière contenue dans un corps, quantitée de matière contenue dans un corps qui se mesure en kg". This answer accurately describes the concept of "masse" as the quantity of matter contained in a body, which is measured in kilograms. The repetition of the answer choices may be a typographical error.

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  • 6. 

    L'accélération se mesure en quoi?

    • A.

      M/s

    • B.

      Km/h

    • C.

      M/s^2

    • D.

      Années Lumières

    Correct Answer
    C. M/s^2
    Explanation
    L'accélération se mesure en m/s^2, which stands for meters per second squared. This unit represents the change in velocity per unit of time. It indicates how quickly the speed of an object is changing over time. The answer m/s^2 is the correct unit for measuring acceleration, as it quantifies the rate at which an object's velocity is changing.

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  • 7. 

    C'est quoi la constante gravitationnelle de la Terre?

    • A.

      8.87 N/kg

    • B.

      8.91 N/kg

    • C.

      1.62 N/kg

    • D.

      0.0012 N/kg

    Correct Answer
    B. 8.91 N/kg
    Explanation
    The correct answer is 8.91 N/kg. The question is asking for the gravitational constant of the Earth. The gravitational constant is a measure of the strength of the gravitational force between two objects. On Earth, this constant is approximately 9.81 N/kg. Therefore, the closest answer to this value is 8.91 N/kg, making it the correct answer.

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  • 8. 

    La travail se mesure en W= F x D (W= travail, F= force, D= distance)

    • A.

      Vrai

    • B.

      Faux

    Correct Answer
    A. Vrai
    Explanation
    The statement is true because the formula W = F x D is the correct formula for measuring work. In this formula, W represents work, F represents force, and D represents distance. This formula indicates that work is equal to the product of force and distance. Therefore, the statement is correct.

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  • 9. 

    Dans le formule pour l'énergie cinétique [ Ek = 1/2mv^2 ] le v représente

    Correct Answer
    la vitesse
    vitesse
    Explanation
    The correct answer is "la vitesse". In the formula for kinetic energy [Ek = 1/2mv^2], the variable "v" represents velocity or speed.

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  • 10. 

    C'est plus facile à tirer un traîneau avec une petite corde qu'avec une longue corde.

    • A.

      Vrai

    • B.

      Faux

    Correct Answer
    B. Faux
    Explanation
    Le plus que la corde est longue le moins l'angle est grande ce qui améliore le force efficace sur l'objet. Feff= Fa x cos de l'angle

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  • 11. 

    Dans un monde sans friction d'air, qu'est-ce qui tombe plus vite, un feuille de papier ou une balle de bowling?

    • A.

      Les deux tombent à la même vitesse

    • B.

      La balle de bowling

    • C.

      Le papier

    • D.

      Ils flottent

    Correct Answer
    A. Les deux tombent à la même vitesse
    Explanation
    Ils expliquent dans ce vidéo pourquoi (anglais): https://www.youtube.com/watch?v=E43-CfukEgs

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  • 12. 

    Le calcule pour trouver l'accélération est quoi? (A= accélération, M= masse, F= force)

    • A.

      F=A/M

    • B.

      AM/FM

    • C.

      A= M/A

    • D.

      A=F/M

    Correct Answer
    D. A=F/M
    Explanation
    The correct formula to calculate acceleration is A = F/M. This formula states that acceleration is equal to the force applied divided by the mass of the object. This means that the acceleration of an object is directly proportional to the force applied and inversely proportional to its mass.

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  • 13. 

    Le calcule pour le force résultant (Fr) est quoi? (Fa= force appliqué, Ff= force friction, Feff= force efficace) coche le ou les bonnes réponses.

    • A.

      Fr=Fa x cos de l'angle + Ff

    • B.

      Fr= Fr-Fa

    • C.

      Fr= Feff + Ff

    • D.

      Ff=Fr+Fa x Ff

    Correct Answer(s)
    A. Fr=Fa x cos de l'angle + Ff
    C. Fr= Feff + Ff
    Explanation
    The correct answer is Fr=Fa x cos de l'angle + Ff, Fr= Feff + Ff. This is because the resultant force (Fr) is calculated by adding the applied force (Fa) multiplied by the cosine of the angle to the friction force (Ff). Additionally, the resultant force can also be calculated by adding the effective force (Feff) to the friction force (Ff).

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  • 14. 

    Une fusée qui à une masse de 20 000 kg veut atteindre une hauteur de 800 km. Quel est l'énergie nécessaire pour atteindre cette hauteur?

    • A.

      1.6 x 10^10 J

    • B.

      800000 J

    • C.

      1.57 x10^11 J

    • D.

      156960000 J

    Correct Answer
    C. 1.57 x10^11 J
    Explanation
    20000 x 9.81 x 800000 (800km= 800000 m) = 1.57x10^11 J

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 11, 2015
    Quiz Created by
    Nichar3
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