What is Graph of speed versus time will be what shape?
100
Metric- Newton (1 kg = 9.8 newtons)
What is the metric unit of weight (force)?
100
a push or pull
Define force
100
The law of inertia- the tendency of an object to remain in motion or at rest unless acted upon by an unbalanced force
What is Newton’s 1st law?
200
The force of attraction between all objects due to their mass
What is gravity?
200
Curved line
What is Graph of time versus mass will be what shape?
200
9.8 meters per second squared (9.8 m/s/s)
What is the rate of acceleration due to gravity?
200
Balanced forces result in
no change in motion
200
Acceleration of an object depends on mass and amount of force applied) F = M A force equals mass times acceleration (less mass/more acceleration) (more mass/less acceleration)
What is Newton’s 2nd law?
300
The tendency of an object to resist changes in motion (to remain at rest or in motion)
What is inertia?
300
Crumpled sheet has less surface area and less air resistance/friction
Explain why the crumpled sheet of paper will hit the ground before the uncrumpled sheet of paper.
300
What’s harder to stop? BIG MASS slow speed, or Little mass great speed?
Both could be hard to stop because A times M = force
300
Movement
What is Unbalanced forces result in
300
For every action there is an equal and opposite reaction
What is Newton’s 3rd law?
400
The measurement of how quickly the speed changes
What is acceleration?
400
As it goes up, the force of gravity is DOWN, and the force of friction is DOWN
As a rocket as goes UP what direction is the force of gravity? The force of friction?
400
Large mass
Two people jump from a plane (1 large mass, 1 small mass) Both have the same size and type of parachute. Who will hit the ground first?
400
The gravitational attraction (weight is constant on Earth)
Weight is a measure of what?
400
Car stopping and you move forward into your seat belt
What is an example of Newton’s 1st law?
500
The measurement of force in the metric system
What is a newton?
500
As it goes down, the force of gravity is DOWN, and the force of friction is UP
As a rocket comes down, what direction is the force of gravity? The force of friction?
500
Speed was greater with more mass. It INCREASES the downward force
What is the effect of a greater mass on a parachute? What does it do to the downward force?
500
Weight is measured with spring scale
What do you measure with a spring scale?
500
A heavy bat is harder to swing fast than a light bat