Speed and Velocity
Acceleration
Freefall
Projectiles
Vectors
100
The formula to calculate speed is ___________.
What is distance / time.
100
Name 3 different ways an object can accelerate.
What is speeding up, slowing down, and changing direction.
100
What is the only force acting on an object in freefall?
What is gravity.
100
What is the only force acting on a projectile?
What is gravity.
100
How are vectors and scalars different?
What is vector tells you the direction.
200
How are velocity and speed different?
What is velocity is speed plus direction.
200
What is the SI unit for acceleration?
What is m/s2.
200
What is the force that causes an object in freefall to slow down?
What is air resistance.
200
What happens to the vertical velocity of a projectile over time? What happens to the horizontal velocity?
What is vertical velocity slows down on upward path and speeds up on downward path and horizontal velocity stays the same.
200
Arrows that represent vectors can tell you what two things?
What is direction & magnitude.
300
A cheetah runs 75 m in 3 s. Calculate its speed.
What is 25 m/s.
300
A car accelerates from rest to 10 m/s in 2 s. What is the car’s acceleration?
What is 5 m/s2.
300
At what rate do all objects in freefall accelerate?
What is 10 m/s2.
300
At what velocity is a projectile moving at its highest point?
What is 0 m/s.
300
A plane traveling 300 km/h encounters a tailwind of 60 km/h. What is the plane’s resultant velocity?
What is 360 km/h.
400
A car drives 30 km in 0.5 h. Stops and rests for 0.25 h. Then drives 90 km in 1.25 h. Calculate the average speed?
What is 60 km/h.
400
A car comes to a stop at a red light in 5 s. If the car’s initial speed was 15 m/s, then what is the car’s acceleration?
What is -3 m/s2.
400
A tennis ball has been in freefall for 6.5 seconds. What is the ball’s instantaneous speed?
What is 65 m/s.
400
Harry jumps out of a plane traveling 100 m/s. If it takes him 20 seconds to reach the ground, how far has he fallen vertically?
What is 200 m.
400
A plane traveling 350 km/h encounters a headwind of 40 km/h. What is the plane’s resultant velocity?
What is 310 km/h.
500
On a distance versus time graph, the slope of the line on the graph equals the ___________.
What is speed.
500
If an object is accelerating, how would a line representing its motion look on a distance-versus-time graph? On a speed-versus-time graph?
What is curved; straight and slanted
500
A penny was dropped off a building 4 seconds ago. Calculate the distance the penny has traveled.
What is 80 m.
500
Harry jumps out of a plane traveling 100 m/s. If it takes him 20 seconds to reach the ground, how far has he traveled horizontally?
What is 2000 m.
500
You are rowing 3 m/s across a river that is flowing perpendicularly at a rate of 4 m/s. Calculate your resultant velocity.
What is 5 m/s.
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