Scalars and Vectors
A scalar quantity that represents the entire path an object follows from point A to point B.
What is distance?
This quantity, in addition to time passed, is essential to finding the velocity of an object.
What is displacement?
These are the values and their symbols necessary for calculating acceleration.
What are ∆v (change in velocity) and t (time)?
The slope of a position time graph gives you this value.
A vector quantity that represents a change in velocity over time.
What is acceleration?
An object dropped from a small plane hits the ground 7 seconds later. This is the height of the plane when the object was dropped. (The acceleration due to gravity is 9.81m/s2!)
What is 240.35m?
An object starting from rest moves down an incline with an acceleration of 2m/s2 for 2s. This is how far the object moves in 2s.
What is 4m?
The slope of a velocity time graph gives you this value.
What is acceleration?
Two forces of 100N and 145N act concurrently on an object 90° apart from one another. This is their resultant magnitude.
What is 176.14N?
Ms. Beban can't decide where to go. She begins by walking 15m left, then turning around and going 10m right. She turns around again and goes 30.5m left, then 18.4m right. Wait, she dropped her phone. She walks 24m left to pick it up, then 18.5m right. This is her total distance and displacement.
What is a distance of 116m and a displacement of 22.6m left?
A car accelerates uniformly from rest at 3.2m/s2. When the car has traveled a distance of 40m, this will be its speed.
What is 16m/s?
A PT graph (https://tinyurl.com/bdhcc8pu) shows the movement of Nolan on a walk. This value describes his average velocity for the entire trip.
Ms. Panzironi goes on a lovely walk around Pelham Bay. She begins by walking 2500m East from her starting point, turning North for 800m, then West 450m. This is the magnitude and direction of her resultant displacement.
An astronaut standing on a platform on the Moon drops a hammer. If the hammer falls 6m in 2.7s, this is the acceleration due to gravity on the Moon.
What is 1.65m/s2?
The velocity time graph (https://tinyurl.com/372hxjzy) shows the change in a car's velocity over time. This is the displacement of the car between segments D and F.
What is 122.5m?
What is 1.15km?
The speed of light is 3x108 m/s. If the Sun is 1.5x1011m away from Earth, this is how long it takes, in minutes, for light waves to reach Earth.
What is 8.3min?