Into phys, speed, and velocity
Which 16th-century scientist is best known for his work on the Law of Falling Bodies?
Galileo Galilei
what is mass measured in?
Kilograms
What is Newton's first law called?
Law of Inertia
what does give?
Engergy
what is the formula for time?
D/S
which of the following is a scalar quantity?
1. velocity
2. friction
3. volume
4. weight
volume
What is the gravity on Earth?
9.8 m/s^2
what is Newtons 1st Law
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force.
what are the 3 different kinds of forces?
Friction, gravity, and normal force
what is the basic metric system unit for speed?
m/s
According to the Law of Universal Gravitation, what happens to the attraction between two objects as they move further apart?
Define Weight.
the force exerted on a mass by gravity.
What is Newtons 2nd law?
A larger mass requires a larger force to change the motion of the object.
what is normal force?
support force exerted upon an object that is in contact with another stable object.
what is the formula for distance?
S times T
what is the basic metric system unit for speed?
m/s
what is weight measured in?
Newtons
What is Newtons 3rd law
Every actions has and equal and opposite reaction.
what are balanced forces?
2 equal forces pushing in opposite directions
what is the formula for velocity?
D/ T
Describe how an object can have changing velocity even if its speed remains constant.
what is vector?
direction+magnitude
what is Newtons 3rd law also known as?
action and reaction
what do unbalanced forces always cause a change in?
what is the formula for speed?
D/T