Physics in Action: Impulse (Grade 12 NSC Matric Physical Sciences): Flashcards
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Key principle behind safety devices using impulse
Key principle behind safety devices using impulse
Extending collision time reduces force
Impulse formula for force
Impulse formula for force
How air-bags reduce injury
How air-bags reduce injury
Extend time to stop momentum, decreasing force
Why wicket keepers use padded gloves
Why wicket keepers use padded gloves
Padding compresses, reducing force on hands
What is an arrestor bed?
What is an arrestor bed?
Softer ground patch for emergency truck stops
Effect of follow-through in sports
Effect of follow-through in sports
Increases collision time and ball velocity
More dangerous: bouncing or crumpling?
More dangerous: bouncing or crumpling?
Bouncing (larger momentum change)
Why crumple zones make cars safer
Why crumple zones make cars safer
Smaller and longer time, reducing force
How gymnastics padding works
How gymnastics padding works
Compresses, reducing force on gymnast's body
What must occur when object brought to rest?
What must occur when object brought to rest?
Specific change in momentum