Distance, Time & Displacement
The SI unit for time is
seconds
Why can we throw a tennis ball further then bowling ball?
Because the force of the throw remains the same, however the bowling ball has more mass - which requires more force
What country was Isaac Newton born in?
England
Force is a push, pull or ______
twist
What would change on the moon? Mass or weight?
Weight
True or false. Distance can be 0
Nah
If we were trying to calculate the acceleration of a car, what formula would we use?
Force divided by mass = acceleration
What are Newton's 3 laws?
1. Law of Inertia, 2. F = M x A 3. For every action there is an opposite and equal reaction
What is a characteristic of an object that has balanced forces acting upon it?
The object is still
If we removed air from a vacuum and dropped a feather and a bowling ball, which one would hit the floor first?
They would hit the floor at the same timeeeee
What is the term we give speed that has a direction?
velocity
What does net force refer to?
The overall force acting upon an object
When your shoes push on the floor
The floor pushes back
What does friction cause an object to do?
slow down
Picture yourself on a Dirodi. Once you stop pedalling, what are 2 forces that would slow you down all the way to a stop?
Gravity & friction
If you were to travel 1 metre per second for 1 hour, how far would you travel?
3.6km
List the 3 measurements used for Force, Mass & Acceleration
Newtons, Kilograms & m/s
What does the law of inertia actually mean?
Objects like to continue to do the same thing unless acted upon by a force
If an object has unbalanced forces acting upon it, the object is either ________ or __________
Accelerating or decelerating
If we were to look at some ticker timer tape and the dots were getting closer together, what could we say about the object in movement?
It is decelerating / getting slower
What is the main difference between distance and displacement?
Displacement has direction
How are Newtons measured?
1kg to accelerate 1m/s squared
You jumping off the ground, into the air and then back down relates to which law?
Law 3
If an object has 400 newtons pushing it east and 300 newtons pushing on it west, what would be its net force?
100 Newtons - half points
100 Newtons east - full points
If we were to test this class on how high they could leap, what would the independant variable be?
The different students jumping