Wheel and Axis
If your shaft is slanted to the rights. What side does the big wheel have to be on to curve to the left?
On the right.
When forces are balanced, an object will?
Stay in one place and not more. There is no motion.
When you spin a top what type of force are you applying to the top?
A rotational force.
Why does an object stop rolling when it land on the carpet after going down the ramp?
Friction is added and stops the object from rolling.
What happens to the twirly bird when you cut its wings shorter?
The twirly bird will spin faster.
How do you get to the wheel and axis to roll straight down the ramp?
Use the same size wheels on both sides, so the sides of the shaft are balanced.
When forces are unbalanced, an object will?
move; there will be a change in motion.
The bigger the disk?
The faster the disk will spin.
If you place a pencil at the top of a ramp what direction will it roll down?
straight
You have two twirly birds. You add paper clips to the second to compare the two. Which twirly bird is the standard system?
The first one because you are not changing any variables of it.
How can I get my wheel and axis to roll zig zag down the ramp or in a ricked pattern?
Use one small and one large wheel so they are not balanced.
If you are playing soccer and you kick the ball and it hits the goal post and the post doesn't move or push the ball back. How much force does the post push back with?
The exact same as the ball had. The forces are balanced.
What will happen if you put a big disk on the bottom of a shaft and a small disk on the top of the shaft and then try to spin it?
The top will fall over.
When you place the cup at the top of a ramp what forces are acting on it?
gravity is pulling the cup down.
your finger is applying force as you hold it.
There is friction from the ramp under the cup.
You have a twirly bird and you cut the wings of the twirly bird to make it spin faster. What did you change?
You changed the variable of the wing length.
If you put the same size wheels on a wheel and axis system the system will roll?
Straight
What forces are working on the twirly bird when you let go of it?
Gravity pulls the twirly bird down. Air pushes up on the wings to make them spin and to make the twirly bird fall more slowly. Forces are unbalanced.
What it the best design for a top?
More massive the disk the faster it will spin. Greater the diameter of the disk the more stable the top.
If you place a cup on a ramp, it rolls in a?
why?
Curved path
Because the end are different sizes and it acts as a wheel and axis with different size wheels.
If you add more paper clips to the twirly bird and cut the wings what will happen?
The twirly bird will spin faster and fall faster when dropped.
What is is called if you have a wheel-and-axle system with one large wheel and one small wheel?
It is called an uneven wheel system.
Gravity pulls the twirly bird down.
You provide force to hold it in one place equal to gravity.
Forces are balanced.
What happens if you add more weight to a spinning top?
The top does not spin as long.
How can you change the motion of wheels rolling down a ramp?
Change the wheel sizes.
What would make a twirly bird spin faster?
Adding paper clips
Shortening the wings