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Newton's first law

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    questions related to newtons first law of motion
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  • The scientist to first introduce the concept of inertia by thinking about friction was
    Galileo
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  • A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly. This best demonstrates that
    the milk carton has inertia.
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  • An object in mechanical equilibrium is an object
    that can be at rest or moving at a constant speed
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  • The force of friction on a sliding object is 10 N. The applied force needed to maintain a constant velocity is
    10 N
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  • A package falls off a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is
    about 30 m/s
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  • If your automobile runs out of fuel while you are driving, the engine stops but you do not come to an abrupt stop. The concept that most explains why is
    Inertia
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  • According to Newton's law of inertia, a railroad train in motion should continue going forever even if its engine is turned off. We never observe this because railroad trains
    always have forces that oppose their motion.
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  • Whirl a rock at the end of a string and it follows a circular path. If the string breaks, the tendency of the rock is to
    follow a straight-line path.
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  • When a rocket ship accelerating in outer space runs out of fuel, it
    no longer accelerates.
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  • If no external forces are acting on a moving object, it will
    continue moving at the same velocity.
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  • Your inertia can be measured relative to another person by looking at their
    mass
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  • If Joe has a mass of 100 kg, and Betty has a mass of 50 kg, who has more Inertia?
    Joe
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  • If I fling a rock into space, beyond the gravity of the earth, it will stop...
    when it hits something to provide a force
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  • Who made the three laws of motion?
    Newton
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  • Who dropped balls down the tower of Pisa and down waxed bowls?
    Galileo
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  • Who was born last, Galileo or Newton.
    Newton
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  • If I want snow off my boots, I should do what?
    stomp them on the ground
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  • If a feather and a rock were rolling down the hill, which has more inertia?
    rock
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  • If I have a mass of 50 KG, what is my weight?
    500 Newtons
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  • The force of friction has 2 types, static and ...
    Kinetic
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  • Which is greater, static or kinetic friction
    static
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  • When the Net force = 0 , the situation is called this
    equilibrum
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  • When you are in equilibrium, you can be either at rest or
    constant speed
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  • What are the magnitudes of the minimum and maximum resultants of a 4N and a 6 N force?
    2N and . 10 N
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  • If I push on a book up that is at rest in my hand, then the book...
    pushes down with the same force
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  • The name of a "pulling force" due to a wire, rope or string, etc... is called...
    Tension
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  • The name of a force that opposes motion is
    Friction
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  • Does it take more force to start an object or keep it going due to friction?
    Start it (static friction > kinetic friction)
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  • The Force pulling me down an inclined plane is simply its FULL weight. (true or false)
    false...it's the component of weight parallel to the plane.
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  • The unit of mass is the Newton
    false....kg
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  • If I am a projectile, then I am only under the influence of this force...
    Gravitational
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