Forces & their Interactions (AQA GCSE Physics): Flashcards
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What is a resultant force?
What is a resultant force?
A single force that has the same effect as all other forces combined
Type of quantity that forces are
Type of quantity that forces are
Vectors
Two features of forces as vectors
Two features of forces as vectors
Size (in Newtons) and direction
Combining forces in the same direction
Combining forces in the same direction
Add them together
Combining forces in opposite directions
Combining forces in opposite directions
Subtract the smaller from the larger
What zero resultant force means
What zero resultant force means
Balanced forces
Effect of balanced forces on stationary object
Effect of balanced forces on stationary object
Stays stationary
Effect of balanced forces on moving object
Effect of balanced forces on moving object
Keeps moving at same speed in same direction
What does a non-zero resultant force mean?
What does a non-zero resultant force mean?
Unbalanced forces
What unbalanced forces cause
What unbalanced forces cause
Acceleration (speed up, slow down, or change direction)
What objects need to change their motion
What objects need to change their motion
An unbalanced force
What does the direction of resultant force show?
What does the direction of resultant force show?
The direction the object will accelerate