1st Law
What is another name for the first law of motion?
The Law of Inertia.
What is the second law of motion?
An objects acceleration is related to its mass and the net force acting upon it.
F= mxa
What happens according to Newton, when you let go of an untied balloon?
Air rushes out of the balloon causing it to move through the air in the opposite direction, but equal in force.
What is a newton?
The unit used to measure amount of force.
What is an unbalanced force?
Forces that are not equal.
True or False: Inertia is a force.
False.
A push or pull that changes an object's motion.
Force.
When you push a box up a ramp, the box is also _______ back on you.
Pushing.
This is always equal and opposite to the action force.
Reaction
What is friction?
Force that resists motion.
What is the first law of motion?
An object at rest stays at rest until a force acts upon it. Or... an object in motion stays in motion until a force acts upon it.
If an object has ____ mass then it requires less _______ to move.
Less, force
If someone jumps off a skateboard, it rolls backwards because. . .
force sent the person forward, there is an equal force pushing back on the skateboard.
How do Newton's laws affect your daily life?
Answers may vary.
For every action, there is an equal and ______ reaction.
Opposite.
If an object has mass, it also has __________.
Inertia
What is the force if mass = 10 kg and the acceleration = 3 m/s^2.
Force = 30 N.
A baseball bat hits a baseball with a force of 80 Newtons. What is the force and its direction exerted by the ball on the bat?
80 Newtons, and opposite direction.
A change in position of an object relating to time.
Motion.
What is a balanced force?
When forces add up to zero. Equal in magnitude but opposite in direction.
To strike or hit something with great force.
Collide
If an object has ____ mass then it requires more ____ to move it.
more, force
Give an example of equal and opposite forces.
Answers may vary.
EX: a rocket being launched, a balloon accelerating upward
When did Isaac Newton first say the three laws of motion?
In 1687, published in his book.
True of false: An object that is not accelerating or decelerating has no forces acting on it.
False.