An object in motion tends to stay in motion, an object at rest tends to stay at rest.
100
What is mass?
The amount of matter in an object.
100
When you throw or launch and object it take a specific type of path. What would the shape of the path be and what type of motion is this?
The shape is curved and the path is projectile.
100
What is a newton? What units make it up?
Newton is a measure of force and can also be written as
kg x m/s^2
100
Describe what would happen if you put the opposite ends of a magnet together.
They would repel each other.
200
What is Newton's Third Law?
For every action there is an equal and opposite reaction.
200
How do weight and mass differ?
Weight takes into account the acceleration due to gravity, while mass is a measure of the amount of matter.
200
When two objects are touching this is the force that opposes motion.
Friction
200
What is net force?
The sum of all forces acting on an object.
200
Which universal force acts only on the protons and neutron's in a nucleus?
The strong nuclear force.
300
How are the size and direction of action reaction forces related?
They are equal in size and opposite in direction.
300
Weight is equal to mass multiplied by ______.
What letter goes in the blank, what does it stand for, and what is it's value here on Earth?
g , acceleration due to gravity, 9.8 m/s^2
300
What are the forces acting on a falling object?
Gravity and air resistance
300
Draw force arrows that would result in no motion of an object. What type of force is this?
Arrows are equal and opposite - balanced force
300
Which universal force is greatest over long distances?
gravitational
400
If you are in a car and it stops suddenly you fly foreword in your seat. There is one word to describe why this happens. What is that word, and what is it's definition?
Inertia - the tendency of an object to resist a change in motion.
400
How will your weight change if you go to a planet that has more gravity than Earth?
How will you mass change if you go to a planet that has more gravity than Earth?
Weight will increase.
Mass will remain the same.
400
When swinging a beaker full of water this force keeps the beaker traveling in a circular path by doing what?
Centripetal - by exerting an inward force that constantly changes the direction of the beaker.
400
When you step on a bathroom scale you are measuring _______.
What is weight.
400
Which universal forces cause repulsion between like charges?
electric and magnetic
500
Write down three action reaction pairs you see in this room.
Variety of answers...
500
The SI unit for weight is _______.
The SI unit for mass is _______.
weight - N
mass - Kg
500
Two balls have the same mass. They are rolling down a ramp with and one has more momentum than the other. How is this possible?
The ball with more momentum has a greater velocity.
500
If a ball launched from a height of 10 feet and an identical ball is dropped from the same height, which ball will hit the ground first?
They will hit the ground at the same time.
500
What happens to gravity as the distance between two objects decreases?