Cp1 - Scalers and vectors Flashcards
0What are scalers and vectors
scalers and vectors are both measurments
what is a vector
a vector has magnitude and direction
What s a scalar
a scalor has only magnitude
are these vector or scaler measurments:
displacement
speed
acceleration
force
Time
weight
Mass
momentum
energy
velocity
Vector
Scaler
Vector
Vector
Scaler
Vector
Scaler
Vector
Scaler
Vector
What is a force
A force is a push or a pull
What is the equation for speed
speed = distance/time
What is the equation for acceleration which involves velocity and time
A = (V-U)/T = Change in velocity / time
How do we represent force on diagrams
We represent force on diagrams by drawing force arrows. The size of the arrow represents the magnitude of the force. The arrow head shows the direction the force is acting in.
When humans conduct an experiment, is it always accurate
No, there is human error
Can you calculate speed on a distance time graph, if so how
You can calculate speed on a distance time graph, this can be done by finding the gradient of the line you want to measure
A tortoise can crawl at a top speed of 0.2 m/s. How long will it take the tortoise to travel 15 m?
(use a calculator if you want)
Speed = distance/time -> 0.2=15/t -> t=15/0.2 -> Time = 75 seconds
A train is travelling at 35 m/s. It slows down with an acceleration of –0.5 m/s2. How much time does it take to stop and how far does it travel while it is stopping? (use a calculator if you want)
A = (V-U)/T -> 0.5=(35-0)/T -> 0.5 =35/t -> t = 35/0.5 -> Time = 70s
How do you find average speed/velocity
total distance/total time
How can you tell which part of a journey shown on a distance time graph has the highest speed
The largest gradient indicates the highest gradient on a distance time graph
what is a velocity time graph
A velocity-time graph is a graph that plots the velocity of an object over time. It is a useful tool for understanding how the velocity of an object changes over time.
