Forces
The cause of change in the shape, speed or state of rest or motion of a body.
What is a Force?
The scientist from whose statement Newton derived his first law of motion.
Who is Galileo?
The product of a body's mass and velocity.
Linear Momentum.
The name given to the statement "To every action, there is an equal and opposite reaction"
What is Newton's third law of motion?
The force of attraction between two particles due to their masses.
What is the gravitational force of attraction?
The non-contact force that is always attractive.
What is Gravity?
The property of an object by virtue of which it tends to retain its state of rest or motion.
What is Inertia?
The equation using which Newton's first law is derived from the second law.
What is F=ma (when F=0, a=0)?
The force experienced by a body after acting upon another body.
What is a reaction?
The rate at which the velocity of a freely falling body increases.
How much is 9.8ms^-2?
The force exerted by a stretched spring in a direction opposite the pull.
What is restoring force?
The reason an athlete often runs before taking a long jump.
What is inertia of motion?
It is the force which when acts on a body of mass 1kg, produces an acceleration of 1m/s
What is 1 newton?
Considering two linked beam balances, if one beam balance is pulled and shows a reading of 10kgf, this will be the reading on the other.
How much is 10kgf
The force due to gravity on a mass of 1g
What is 1 gram force?
The upward force developed in a string when an object pulls down vertically on it.
What is tension?
A measure of inertia.
What is mass?
The magnitude of the SI unit of force when converted to its CGS unit.
What is 1 newton = 10^5 dyne
The reaction force to the weight of an object.
What is Normal force of reaction?
The value of 1 gf in dyne.
What is 980 dyne?
The magnitude of Normal reaction when a block of weight W (=mg) is placed on a table.
What is N = W?
A mass parameter giving the inertial resistance to acceleration of the body when responding to all types of force.
What is inertial mass?
The two equations combined to gain F=ma.
What is F∝ma and F=Kma (where K=1)?
The action and reaction during the liftoff of a rocket.
What are the force of gases through a nozzle on the ground and the reaction force of the gases on the rocket?
The measure of matter contained in a body, at rest.
What is the mass of a body?