Calculate the rf value of dot B
Calculate the rf value of dot B
Name the type of substance used to reduce friction.
Name the force which acts against a skydiver falling down
Name two ways of increasing the rate of dissolving
Name the equipment used to measure force
Calculate the rf value of dot B
Explain the pattern shown by the chromatogram
A streamlined object will travel ______ than a non-streamlined object.
We can make an object more streamlined by…
What does streamlining mean?
Describe the motion of a streamlined object
Describe the shape of a streamlined object
Describe the shape of a non-streamlined object
How can you make an object more streamlined?
What does streamlining mean?
Describe the motion of a streamlined object
Describe the shape of a streamlined object
Describe the shape of a non-streamlined object
Howcan you make an object more streamlined?
1. Streamlining an object ________ the amount of _____.
2. A non-streamlined object will have a _______ shape.
3. A streamlined object tends to travel _____.
4. Which vehicle, a bus or a sports car, is able to move faster? Explain why.
Which cyclist would travel faster and why? (3)
What is the Independent Variable for discovering the most streamlined shape?
What is the Dependent Variable for discovering the most streamlined shape?
What is the Control Variable for discovering the most streamlined shape?
Write a hypothesis (what you think will happen):
"I think that the bullet/duck will fall fastest because…"
Air resistance (a contact force) is caused by an object having to push air particles out of the way when it moves.
A way to reduce an objects air resistance is to streamline it.
This can be done by reducing the surface area of the front of the object so it has to move less particles out the way when it moves (e.g. the nose of an aeroplane).
An object that is streamlined will experience less air resistance (drag) and therefore be able to move faster.
Read through the text above and answer the questions in full sentences:
1. How can an object be streamlined?
2. What kind of force is air resistance?
3. What causes air resistance?
4. Give an example of a streamlined design.
5. Why will a streamlined object be able to move faster?
Concorde was the fastest passenger plane on the planet.
Use the key words listed below to explain why this might be:
Drag, Air Resistance, Surface Area, Streamlined, Particles.