U1.4 Gravitation Flashcards
The horizontal motion and the vertical motion of a projectile are dependant of each other. True or false?
False. They are independent of each other
The horizontal component of velocity is…
Constant speed
Vertically, what is acceleration due to?
Gravity. On earth it is -9.8 ms-2 and the negative must be included in calculations.
If a projectile is moving horizontally, what is the vertical velocity?
0
If a projectile takes off and lands on a level surface, what is the final vertical velocity equal and opposite to?
The initial velocity upwards.
An object is fired upwards. What is its velocity at its maximum height?
0
Which component affects the time the projectile spends in the air?
The vertical component. The horizontal component has no effect on the time of flight.
A satellite in orbit has…
A constant horizontal speed and falls to the Earth with acceleration due to gravity so it is also considered a projectile.
How can you measure the acceleration of a falling object by experimental methods?
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