Newton's first law
What's this law also known as?
What's the formula for this law?
F=ma
If you jump off the ground into the air, your feet push down on the ground with a force of 250 Newtons. What force does the ground exert on your feet?
The ground pushes back on you with the same strength (250 N) in the opposite direction (upward), which launches you into the air.
If you set a pencil on the desk, will it move randomly?
What does this law describe the relationship between?
This law describes the relationship between force, mass, and acceleration.
If you were going into the water at the tip of the boat, what's the action and reaction?
The action is you going to the tip of the boat, about to jump. Reaction is the boat moving backwards.
A rolling pin remains at rest until a(n) _____ force acts upon it
unbalanced
A net force of 24 N is applied to a 6 kg crate resting on a friction-less surface. What is the resulting acceleration of the crate?
Acceleration = 4
If you were pushing a boulder up the hill, what force is the rock applying to you?
The rock is pushing downward towards you.
What's friction?
Constant rubbing of tiny, rough particles in a surface that gradually slow and stop an object's motion.
If the net force acting on an object is doubled while its mass remains constant, what happens to the object's acceleration?
It is doubled
Formula for Newton's third law?
momentum = mass x velocity
Explain Isaac Newton's first law as closely as you can.
An object that is at rest remains at rest, and an object in motion stays in motion, unless acted on by an unbalanced force.
Explain Newton's second law as best as you can do.
A net force acting on an object causes the object to accelerate in the direction of the force.
Explain what Newtons third law of motion is.
For every action, there is an equal and opposite reaction.