Overview
How many fundamental forces are there?
4
What is Motion?
movement over time
Name one of the three vector Quantities we learned about so far.
Either displacement, velocity, or acceleration.
what is acceleration?
the rate of change of the velocity of an object and time
Strong (nuclear) force, Electromagnetic, Weak (nuclear) force, or gravity
name one of 4 main terms from the motion unit.
Either Acceleration, Speed, Distance, or Displacement.
how do you detect motion?
movement in space compared to a reference point
Which vector quantity am I talking about? "the measurement of length from one point to another point in a straight line."
Displacement
how do you calculate speed?
distance divided by time
This force is responsible for the attraction between two different objects.
Answer: Gravity
The __________ forces are the interactions between all matter in the universe.
Answer: Fundamental
A ball rolls 50 meters in 5 seconds. What is it's average speed?
Answer: 10 meters per second (50 m / 5 sec = 10 meters/second)
This vector quantity describes the rate of change of displacement, often measured in meters per second (m/s).
Answer: Velocity
what is the difference between distance and displacement?
Distance is the measurement of the path the object took, while displacement is the measurement of one point to another.
name the fundamental forces in order of most strength to least strength.
Strong Force, Electromagnetic, Weak Force, Gravity
This term describes the change in an object's position over time, and is typically measured in (m/s) for speed or (m/s²) for acceleration.
Answer: Motion
This word describes how far an object has moved, regardless of direction.
Answer: Distance
This vector quantity is the rate of change of velocity, measured in meters per second squared (m/s²).
Answer: Accelearation
DOUBLE POINTS:
A car at rest accelerates at a rate of 5 meters per second squared. How fast is the car moving after 4 seconds?
Answer: 20 m/s (5 m/s x 4 seconds = 20 m/s
If you got the question correct, add 700 points to your total instead of 350.
This force is responsible for holding atomic nuclei together, and is much stronger than gravity and only occurs inside the nucleus.
Answer: Strong (Nuclear) Force