Kinematics
Answer: It is the study of “how” objects move.
Question: What is Kinematics?
Answer: This force acts against motion.
Question: What is Friction?
Is velocity a vector or a scalar?
Vector
Show how to add two vectors in a line together.
Good work!
Answer: It is the equation for Newton’s Second Law.
Question: What is ƩF = m*a?
Which term, distance or displacement, is used to describe the total length of the path?
Distance
Answer: This force pulls objects towards the center of the earth.
Question: What is the Force of Gravity, or “Weight”?
Daily Double: Answer: These three actions mean that something is accelerating.
What is “speeding up, slowing down, or changing direction?”
Draw a force diagram (free body diagram) of a box at rest on a horizontal surface:
Nice!
Answer: It is the symbol for “change in”.
Question: What is Δ?
Which term, scalar or vector, is defined as a quantity that has both magnitude and direction.
Vector
Answer: This Law of Motion from Isaac Newton explains why a person feels as though they are pushed back into their seats when a car starts to move forward from a stopped position.
Question: What is Newton’s 1st Law?
Answer: This method used to add, subtract, multiply, and divide vectors is called the Tip to ____ Method.
Question: What is Tip to Tail Method?
What shape trajectory would a ball rolled off a horizontal table make as it moves towards the ground below?
Fantastic!
The equation for displacement.
What is change in position Δx = xf - xi final – initial
The change in position of an object divided by the time to make that change is called what?
Velocity
Answer: This Law of Motion from Isaac Newton explains why an untied blown up balloon will fly across the room when released.
Question: What is Newton’s 3rd Law? (balloon pushes air, air pushes balloon)
When a boat can move 20 m/s in water and a tail wind is blowing at 5 m/s, how fast will the boat travel?
25 m/s
Draw a vector "A", then draw "3 A"
Cool!
Answer: It is the equation for acceleration.
Question: What is change in velocity over time?
Daily Double: If a small object is projected horizontally at the same time a large object is dropped, which object hits the ground first?
They hit the ground at the same time.
Answer: This force makes a box that is pushed across the floor move at a constant speed instead of accelerating.
Question: What is Friction?
Answer: To correctly draw vectors in a diagram, we must add this to understand which direction is positive, negative, or N, E, S, or W.
Question: What is a coordinate system?
If a current is moving southward, how should a boat captain direct their boat so that it lands straight across the river?
General direction is at an angle northwest
Daily Double: Solve for the frictional force, Ff, if an object is pushed with an applied force of 10 N horizontally at a constant speed.
What is Ff = 10 N?