Review for Test 1: Converting Units, Constant Speed/Velocity, Acceleration, Freefall, Graphing
1. Draw the position vs. time graph and the velocity vs. time for (positive) constant velocity.
2. Draw the position vs. time graph and the velocity vs. time for (positive) constant acceleration.
3. Use the figure to the right to find the acceleration of the object at t= 12s
4. Use the figure to the right to find the distance the object travels from 15s
to 25s.
5 a. 0.243 cm = _________nm
b. 6.50 kg km/min² = __________kg m/s²
6. What 4 equations can be used to solve constant acceleration problems?
7. A ball is hit straight up and after 1.0s it is 11.0m above the ground and
moving upward at +4.9m/s. a) What is its velocity when it reaches the top
of its path? b) What is its acceleration at the top? c) What is its velocity when it gets back down to 11.0m above
the ground? d) If it was hit up at t=0s, at what time will it get back down to 11.0m above the ground?
(Skip 8.)
9. A car at rest accelerates and speeds up for 6.50s. It then slows down to 7.0 m/s west in 5.00s. If the car goes 81m
west in the 11.50s, what was its average velocity? (Show ALL work.)
10. If north is positive and a car has an acceleration of -5.0m/s2, do you know what direction the car is moving?
If so, give the direction the car is moving. If not, explain why you don’t know the direction.
11. A girl throws a rock into a tree to try to get her soccer ball down. If the ball is 6.53m above her hand when
she lets go of the rock, what minimum velocity must she give the rock to be able to hit the ball? (Show all work.)
12. Pg 72 #46 (Show all work.)
Review for Test 1: Converting Units, Constant Speed/Velocity, Acceleration, Freefall, Graphing
1. Draw the position vs. time graph and the velocity vs. time for (positive) constant velocity.
2. Draw the position vs. time graph and the velocity vs. time for (positive) constant acceleration.
3. Use the figure to the right to find the acceleration of the object at t= 12s
4. Use the figure to the right to find the distance the object travels from 15s
to 25s.
5 a. 0.243 cm = _________nm
b. 6.50 kg km/min² = __________kg m/s²
6. What 4 equations can be used to solve constant acceleration problems?
7. A ball is hit straight up and after 1.0s it is 11.0m above the ground and
moving upward at +4.9m/s. a) What is its velocity when it reaches the top
of its path? b) What is its acceleration at the top? c) What is its velocity when it gets back down to 11.0m above
the ground? d) If it was hit up at t=0s, at what time will it get back down to 11.0m above the ground?
(Skip 8.)
9. A car at rest accelerates and speeds up for 6.50s. It then slows down to 7.0 m/s west in 5.00s. If the car goes 81m
west in the 11.50s, what was its average velocity? (Show ALL work.)
10. If north is positive and a car has an acceleration of -5.0m/s2, do you know what direction the car is moving?
If so, give the direction the car is moving. If not, explain why you don’t know the direction.
11. A girl throws a rock into a tree to try to get her soccer ball down. If the ball is 6.53m above her hand when
she lets go of the rock, what minimum velocity must she give the rock to be able to hit the ball? (Show all work.)
12. Pg 72 #46 (Show all work.)
Review for Test 1: Converting Units, Constant Speed/Velocity, Acceleration, Freefall, Graphing
1. Draw the position vs. time graph and the velocity vs. time for (positive) constant velocity.
2. Draw the position vs. time graph and the velocity vs. time for (positive) constant acceleration.
5 a. 9.25 Gs = _______s
b. 0.243 cm = _________nm
c. 6.50 kg km/min² = __________kg*m/s²
6. What 4 equations can be used to solve constant acceleration problems?
7. A ball is hit straight up and after 1s it is 6m above the ground and moving upward at +4.9m/s. a) What is its
velocity when it reaches the top of its path? b) What is its acceleration at the top? c) What is its velocity when it
gets back down 6m above the ground? d) If hit up at t=0s, when will it get back down to 6m above the ground?
8. A woman running west accelerates (uniformly) toward the west. If she speeds up to 5.05m/s in 6.12s and
runs 25.3m west in that time, how fast was she going before she started to accelerate? (Show ALL work.)
9. A car at rest accelerates and speeds up for 6.50s. It then slows down to 7.0 m/s west in 5.00s. If the car goes 81m
west in the 11.50s, what was its average velocity? (Show ALL work.)
10. If north is positive and a car has an acceleration of -5.0m/s2, do you know what direction the car is moving?
If so, give the direction the car is moving. If not, explain why you don’t know the direction.
11. A girl throws a rock into a tree to try to get her soccer ball down. If the ball is 7.03m above her hand when
she lets go of the rock, what minimum velocity must she give the rock to be able to hit the ball? (Show all work.)
12. Pg 72 #46 (Show all work.)