Speed/Velocity
Acceleration
Free Fall
Vector/Scalar Quantities
Projectiles
100
How far does an object travel in three second if it is traveling at 9m/s
3 meters
100
Acceleration is the rate at which what happens?
Change in velocity.
100
What force is responsible for acceleration during free fall?
Gravity.
100
What is the difference between a vector quantity and a scalar quantity?
A scalar quantity measures magnitude, while a vector quantity measures magnitude and direction.
100
What classifies a projectile?
An object with both horizontal and vertical components of motion.
200
What is the difference between speed and velocity?
Speed is distance divided by time, velocity is speed in a given direction.
200
What is the acceleration of a car traveling at a constant velocity of 75m/s north.
0m/s/s
200
For a freely falling object dropped form rest, what is the acceleration at the the end of the eigth second?
80m/s/s
200
Is speed an example of a scalar or vector quantity?
A scalar quantity.
200
What is a projectile that continually "falls" around earth called?
A satellite.
300
What is ther difference between average speed and instantanious speed?
Average speed is the total distance covered divided by total change in time, insatntanious speed is speed at any finite point in time.
300
When a car driving at a constant speed takes a turn, does it accelerate?
Yes, it changes direction.
300
How far will an object dropped from rest fall after seven seconds of free fall?
245 meters
300
When a rectangle is constructed to add velocities, what represents the resultant of the vector addition.
The diagonal.
300
How does the downward motion of a projectile campare with the downward motion of a free fall?
The downward distance increases as the object accelerates.
400
What is the average speed of a cheeta that runs 170 meters in 4 seconds?
42.5m/s
400
What is the accelertion of a car (in km/h/s) that can go from rest to 136km/h in 6 seconds?
22.67km/h/s
400
What is terminal velocity and what causes it?
The point at which an object stops accelerating due to air resistance.
400
Calculate the resulting velocity of a plane flying at 100m/s north against a 25m/s tail wind going south.
75m/s north.
400
How does the horizontal motion of a projectile change as it travels.
It does not change, the horizontal motion remains constant.
500
A car is traveling 180m/s passes a car traveling at 50m/s going in the same direction. What is the speed of the first car reletive to the second car.
130m/s
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