Secret Formula
What formula would you use to find the force of something?
F=ma
A downhill skier weighs 66kg and is moving at 2m/s2. What is the amount of force needed to accelerate the skier?
What is 132N
Inertia is another name for Newton's _____ law of motion.
What is the first law of motion
The area of science that studies how energy is transferred from place to place and into different forms is...
____ resists the motion of two surfaces in contact
What is friction
Velocity can be found by dividing _____ by time.
What is distance
The speed of a bicycle traveling north 48mi in 4 hours is...?
What is 12mph
F=ma is an example of which law of motion?
What is the second law
This is a property of a moving object that causes it to keep moving
What is momentum
This type of friction affects moving objects
What is kinetic friction
What unit is used to label the amount of force something has?
What are Newtons
The velocity of the same bicycle as it returns hime at the same speed is what?
What is 12 mph south
The third law states that there is an ____ and ____ reaction for every action done.
What are equal and opposite
This property explains how an object resists a change in motion.
What is inertia
Objects at rest are affected by this kind of friction
What is static friction
Momentum can be found by multiplying what two units of measure?
What are velocity and mass
A force of 250N is applied to an object that accelerates at a rate of 5m/sec2. What is the mass of that object?
What is 50kg
Two billiard balls colliding and moving in opposite directions is an example of which law of motion?
What is the third law
Movement that includes both speed and direction is...
What is velocity
A surfer is riding a wave back to shore. His feet are stationary while the rest of his body works to balance. What type of friction is expressed by his feet in contact with the board?
What is static friction
What is the amount of acceleration increases
Two billiard balls collided. One was stationary. The other was moving at a velocity of 5m/sec. The mass of the billiard ball is 0.15kg. The momentum that was transferred to the second ball was....
What is 0.75kg x m/sec
A student can throw a baseball faster than he can throw a bowling ball. This is an example of which law of motion?
What is the second law
Three outside forces that hinder momentum are friction, _______, and ________.
The same surfer is now moving to help him balance as the waves get more choppy. This type of friction of his feet on the board is considered what type of friction?
What is kinetic friction