Forces Flashcards
Forces can change
The shape of something
It’s speed
The direction something is moving in
What are forces measured in?
Newtons
What is Newton’s 1st law of motion?
An object will remain as is unless it is acted on by an unbalanced force. (Inertia)
What tool can you use to measure forces?
A Newton meter
What is streamlining?
Giving an object an aerodynamic shape to reduce force of friction or air resistance
What is an independent variable?
It is something we change
What is a dependent variable
It is what we measure
What is a control variable
Something we keep the same.
Do balanced forces produce change in movement?
No
When a cyclist starts to pedal, are they speeding up, slowing down, changing direction or changing shape?
Speeding up
When a parachute on a racing car opens up is it speeding up, slowing down, changing direction or changing shape?
Slowing down
When a cricketer hits a ball that is bowled towards him, does it speed up, slow down, change direction or change shape? (Put the main one)
Speed up
Are the forces balanced or unbalanced when a vase is sitting on a shelf
Balanced
Are the forces balanced or unbalanced when a cyclist starts moving?
Unbalanced
Are the forces balanced or unbalanced when a car slows down?
Unbalanced
