newtons law
whats newtons first law
In the first law, an object will not change its motion unless a force acts on it
what is momentum ?
what is projectile motion ?
Projectile motion is the motion of an object thrown (projected) into the air when, after the initial force that launches the object, air resistance is negligible and the only other force that object experiences is the force of gravity.
what is power ?
the rate at which work is done.
Kids were playing with balls which are of equal mass. They kicked them with different forces. Which one accelerated more?
Blue ball – 3N
whats newtons 2nd law ?
Newton's second law is a quantitative description of the changes that a force can produce on the motion of a body.
what is the formula for momentum
p = m v
what are the 3 main concepts of projectile motion ?
Range, Symmetry, Maximum Height.
what is the rule for power ?
work/time.
A 10kg box is moving across the floor with a constant speed. Which statement explains the mistake of this FBD?
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A 10kg box is moving across the floor with a constant speed. Which statement explains the mistake of this FBD?
Vectors Fa and Ff should have the same the same length.
What does Newton's 3 law state?
Newton's third law simply states that for every action there is an equal and opposite reaction
whats an Ex of momentum ?
strength or force gained by motion or by a series of events
what is the meaning of projectile ?
any object thrown into space upon which the only acting force is gravity.
how is power related to energy ?
Power is how fast energy is used or transmitted
what are the 4 main types of forces ?
gravity, electromagnetism, weak nuclear force, and strong nuclear force.
What is Newton's 4th law?
Two particles of mass M and m are mutually. attracted with equal and opposite forces F and -F
what is momentum known as ?
he product of an object's mass and velocity.
what are 3 Ex of projectile motion ?
What is power in physics form?
power = work done / time interval
what are the 3 type of main forces ?
whats an example of newton third law ?
what does it mean to say that momentum is ?
the mass of the object multiplied by its velocity
how does projectile motion work ?
The object is called a projectile, and its path is called its trajectory.
whats an example of power ?
A 60-W light bulb, for example, expends 60 J of energy per second
what are the 2 type of forces ?
contact forces and act at a distance force.