7.7 Projectile motion 1

Question 1

What is a projectile?

Answer 1

» An object acted upon only by the force of grabity

Question 1

What is a projectile?

Answer 1

» An object acted upon only by the force of grabity

Question 2

What is the 3 key principles that apply to all projectiles?

Answer 2

» Acceleration of the object is always equal to g in its vertical component
» Horizontal velocity is constant as acceleration is 0
» Motion in the horizontal and vertical directions are indepedent of each other

Question 3

What path does an object thrown of a certain height follow?

Answer 3

» A curved path downwards before it hits the surface

Question 4

What does it mean if the horizontal speed is increased?

Answer 4

» The further away it will land

Question 5

What does a stroboscope do?

Answer 5

» Used to record the motion of a projectile

Question 6

What does a stroboscope do?

Answer 6

» Used to record the motion of a projectile

Question 7

What is the horizontal component of the displacement?

Answer 7

» Displacement = Speed x time

Question 8

Why does the vertical component have no inital velocity?

Answer 8

» Because it has no vertical component of its initial velocity

Question 9

What is the final speed?

Answer 9

» Vertical + horizontal