Grade 7 Physics: Interaction Between Matter and Energy
15 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the result of an unbalanced net force acting on an object?

  • The object will accelerate (correct)
  • The object will remain in motion
  • The object will change direction
  • The object will decelerate

What is the relationship between weight and mass?

  • Weight is proportional to the square of mass
  • Weight is equal to gravitational force times mass (correct)
  • Weight is inversely proportional to mass
  • Weight is independent of mass

What is the purpose of a free body diagram?

  • To show the relative magnitude and direction of all forces acting on an object (correct)
  • To calculate the magnitude of forces
  • To determine the direction of forces
  • To calculate the acceleration of an object

What is the name of the physicist who developed the three laws of motion and calculus?

<p>Isaac Newton (A)</p> Signup and view all the answers

What is the first law of motion also known as?

<p>Law of Inertia (D)</p> Signup and view all the answers

What is the formula for velocity?

<p>displacement over time (C)</p> Signup and view all the answers

Which of the following is NOT a fundamental force of nature?

<p>Unified Field Theory (A)</p> Signup and view all the answers

What is the net force if the sum of all forces acting on an object is zero?

<p>Balanced force (B)</p> Signup and view all the answers

Which type of force is responsible for the attraction between charged particles?

<p>Electrostatic Force (A)</p> Signup and view all the answers

What is a scalar quantity?

<p>A quantity described with a single number (D)</p> Signup and view all the answers

Which of the following is an example of a non-contact force?

<p>Electromagnetic Force (D)</p> Signup and view all the answers

What is the weakest of the four fundamental forces?

<p>Gravity (B)</p> Signup and view all the answers

What is the type of motion that does not require an external cause to occur?

<p>Natural motion (D)</p> Signup and view all the answers

What is the formula for displacement?

<p>final position - initial position (A)</p> Signup and view all the answers

What is the type of force that opposes the motion of an object?

<p>Frictional Force (D)</p> Signup and view all the answers

More Like This

Physics Mechanics Quiz
8 questions
Physics Mechanics Overview
12 questions
Physics: Mechanics Quiz
12 questions
Use Quizgecko on...
Browser
Browser