Show:
Measuring Forces
Gravity
Laws of Motion
Types of Friction
Momentum
100
The type of force that always causes an object to accelerate?
What is a NET force
100
The rate at which objects accelerate while falling to the Earth
What is 9.8 m/s2 (or 10)
100
He created the laws of motion
Who is Sir Isaac Newton
100
These are two forces that can act between objects that don't even touch each other.
What is GRAVITY, ELECTRIC FORCE, or MAGNETIC FORCE?
100
The two factors that determine momentum of an object.
What are MASS and VELOCITY?
200
Balanced forces acting on a car cause it to do this.
What is travel at a constant speed and velocity?
200
The two factors that determine the strength of the pull of gravity
What is Distance and Mass
200
This states for every action there is an opposite and equal reaction
What is Newtons 3rd Law
200
This is the force that causes a helium balloon to float upward.
What is BUOYANT FORCE?
200
Of a 100kg person running at 4 m/s or a 50kg person running at 10m/s, the one with greater momentum.
What is the 50kg person?
300
The unit with which all forces are measured
What is a NEWTON
300
A 100 pound person would weigh how much on the moon?
What is 15-20 pounds, or 1/6th as much?
300
The first law, or the law of inertia
What is objects at rest tend to stay at rest, and objects in motion tend to stay in motion.
300
The sliding friction for an object sliding across a desk depends on these two factors
What are the weight of the object and the roughness of the surface.(coefficient of friction)
300
This states that the total momentum of objects before a collision is the same as the total momentum after the collision.
What is the Law of Conservation of Momentum
400
The sum of 10 Newtons of forces upward and 8 Newtons of force downward
What is 2 Newtons upward?
400
This person discovered that all oblects fall at the same rate of Earth regardless of their mass.
Who is Galileo?
400
The 2nd Law states that these three quantities are related
What is Force, Mass, and Acceleration
400
For an object being pulled up a ramp, the force of friction is in this direction
What is down the ramp?
400
The velocity of a 2kg ball with a momentum of 10 kgm/s.
What 5 m/s?
500
The method used to add forces together as vectors
What is the TIP to TAIL METHOD
500
This states that all object in the universe are affected by gravity no matter how small or how far apart.
What is the Law of Universal Gravitation
500
The reaction force that is equal and opposite to the Earth pulling downward on a skydiver
What is the skydiver pulling upward on the Earth?
500
A 5 Newton force of gravity pulling downward on the book on your desk is balanced by what force pushing upward?
What is a 5 Newton NORMAL FORCE?
500
A car with twice the mass, and travelling at twice the speed of another car has how many times the momentum?
What is 4 times as much?