Physics😟

Cards (51)

  • What is the term for the coordinate system used to determine motion?
    Cartesian coordinate system
  • How is motion measured in a Cartesian coordinate system?
    Motion is measured using x and y coordinates
  • What is instantaneous velocity?

    Velocity of an object at a specific moment
  • What does the magnitude of velocity refer to?
    The speed of the object without direction
  • What is a projectile?
    An object given an initial velocity and influenced by external forces
  • What external forces influence a projectile?
    Gravity and air resistance
  • What is the total velocity of a projectile after launch?
    The vector sum of horizontal and vertical components
  • How is projectile motion characterized?
    By the influence of gravity and air resistance
  • What does Newton's first law state?

    An object at rest stays at rest unless acted upon by an external force
  • What is the formula for Newton's second law?

    F⃗=\vec{F} =ma⃗ m\vec{a}
  • What does Newton's third law state?
    For every action, there is an equal and opposite reaction
  • What is the significance of Newton's second law?
    It defines force and provides a way to measure it
  • What are the properties of forces according to Newton's third law?
    Forces occur in pairs, act in opposite directions, and act on different systems
  • How is weight defined in physics?
    Weight is the force of gravitational attraction on an object
  • What is the direction of the weight vector?
    Points downward towards the center of the Earth
  • What is the relationship between mass and weight?
    Weight is proportional to mass under gravitational attraction
  • What does the term "gravitational attraction" refer to?
    The force exerted by a planet on an object due to its mass
  • What is the significance of Galileo's experiments?
    They established a description of motion and disproved previous theories
  • What is the purpose of Newton's laws of motion?
    They control the principles of dynamics and describe motion
  • What is the relationship between force and acceleration according to Newton's second law?
    Force is equal to mass times acceleration
  • How does the concept of balanced forces relate to motion?
    Balanced forces result in no change in motion
  • How does mass affect gravitational force?
    Greater mass results in a stronger gravitational force
  • What happens when forces are unbalanced?
    Unbalanced forces cause a change in motion
  • What is the effect of gravity on objects?
    Gravity pulls objects towards the center of the Earth
  • What is the formula for calculating gravitational force?
    F<sub>g</sub> = mg
  • What is the significance of the weight vector?
    The weight vector indicates the direction and magnitude of gravitational force
  • How does the concept of inertia relate to Newton's first law?
    Inertia is the tendency of an object to resist changes in its state of motion
  • What is the relationship between force and motion?
    Force causes changes in the motion of an object
  • What is the role of external forces in motion?
    External forces can change the motion of an object
  • How does the concept of acceleration relate to force?
    Acceleration is directly proportional to the net force acting on an object
  • What is the significance of the vector sum of forces?
    The vector sum determines the net force acting on an object
  • What is the effect of balanced forces on an object?
    Balanced forces result in no change in the object's motion
  • How do unbalanced forces affect an object's motion?
    Unbalanced forces cause the object to accelerate or change direction
  • What is the relationship between mass and gravitational force?
    Gravitational force is proportional to the mass of the objects involved
  • What is the role of gravitational force in the motion of celestial bodies?
    Gravitational force governs the motion of celestial bodies in space
  • How does Newton's law of universal gravitation relate to mass?
    It states that gravitational force is proportional to the product of the masses
  • What is the formula for Newton's law of universal gravitation?
    F = G\frac{m_1 m_2}{r^2}
  • What does the gravitational constant (G) represent?
    It is a proportionality constant in the law of universal gravitation
  • How does distance affect gravitational force?
    Gravitational force decreases as the distance between objects increases
  • What is the significance of gravitational fields?
    Gravitational fields represent the influence of mass on other masses