IB Physics | 1st Semester Review
1 | Science Skills
1. List the seven fundamental base units and their abbreviations
Length
Mass
Time
Electric
... [Show More] Current
Temperature
Amount of Substance
Luminous IntensityUnit Conversion
2. Convert 167 g to kg
3. Convert 0.0043 GW (gigawatts) to mW (milliwatts)
4. Convert 10,853 cm to km
5. Convert 439,000 cm2 to m2
6. Convert 125 in3 to cm3
1 in = 2.54 cm
Dimensional Analysis
7. Is this equation valid? Note that t is in s, v is in m s-1, a is in m s-2, x is in m, F is in kg m s-2 and m is in kg.
v2 = 2ax
8. Is this equation valid? Note that t is in s, v is in m s-1, a is in m s-2, x is in m, F is in kg m s-2 and m is in kg.
t = v / F
9. What are the units of the constant g this equation? (be sure to write with negative exponents if needed)
𝑔 = 𝐺
𝑚 2𝑟 | Variable | Unit
Mass
m | Kilogram
[kg]
Radius
r | Meter
[m]
Gravitation Constant
G | [N m2 kg-2]
Gravity
gUncertainty
10. You use an electronic balance to find that your action figure weighs 4.52 grams.
a. What is the absolute uncertainty in the measurement?
b. What is the percentage uncertainty in the measurement?
11. Calculate the Absolute and Percentage Uncertainty for the following set of data
22.5 s
20.8 s
19.6 s
28.3 s
21.7 s
20.4 s
Absolute:
Percentage:
2 | Motion
12. Samantha walks 60 meters east, then 40 meters north, then 30 meters west. What is her displacement? Distance?
13. You watch your friend’s coffee cup fall straight off of an 87-centimeter-tall table. How many agonizing seconds do you
have to watch until it hits the ground?
14. Lucy stands on the edge of a vertical cliff and throws a stone vertically upwards. The stone leaves
her hand with a speed of 15 m s-1 at the instant her hand is 80 m above the surface of the sea. Air
resistance is negligible and the acceleration of free fall is 9.81 m s-2.
a. Calculate the maximum height reached by the stone as measured from the point where it
is thrown.
b. Determine the time for the stone to reach the surface of the sea after leaving Lucy’s hand.
15. Draw the corresponding graphs for the following:
16. You throw a dart perfectly horizontally aiming at the bullseye on the target 2 meters away. Sadly, you find that the
dart hits the target 0.1 m too low. Complete the following tables accordingly… (remember the spitball problem)
X | Y
s
u
v
a
t
Throwing Speed
Impact Speed
Impact Angle
17. Case Keenum launches a football at speed of 20 m/s and an angle of 30° from the horizontal. Use the X-Y table to
calculate the total distance, total time, and max height of the throw.
X | Y
u
v
s
a
t3 | Forces
18. Calculate the Net Force and acceleration of this 10 kg box
19. The following FBD represents an object in equilibrium. What is the magnitude and angle of force F?
Total Distance
Total Time
Max Height
Net Force
Acceleration
20. You want to find the coefficient of friction for a book sliding to a stop on a table. After collecting some data and doing
preliminary kinematic calculations, you find that your 2 kg book comes to a stop with an acceleration of -2.5 m s-2.
Using this information, your mini-equation for the coefficient of friction, and Newton’s Second Law, find the following:
21. It requires 1 N of force to drag your shoe (.16 kg) across a table at a constant velocity. Complete the table with the
proper values to calculate the coefficient of friction of your shoe
m
a
Fnet
Ff
F
g
R
µ
Fw
R
Fpull
Ff
Fnet
µ
22. You watch a trunk weighing 40 N slide down a 30q ramp. The coefficient of dynamic friction (μd) between the trunk
and the ramp is 0.25. Draw forces on the FBD and solve for the acceleration of the block.
4 | Circular Motion
23. Which vectors in this diagram represent tangential velocity, centripetal
acceleration and centripetal force for an object in a clockwise orbit in
the position shown?
Tangential Velocity
Centripetal Acceleration
Centripetal Force
24. A bicycle is moving with a linear velocity of 8.2 m s-1. If the wheels each have a radius of 31 cm, what is the angular
velocity of the wheel?
25. A toy train of mass 0.5 kg is moving around a circular track of radius 0.7 m at a steady speed of 0.25 m s-1.
a. What is the centripetal acceleration of the train?
b. What is the centripetal force of the train?
26. In a popular amusement-park ride, a cylinder of radius 3.41 m is set in rotation at an angular speed of 4.43 rad/s, as
shown in the figure. The floor then drops away, leaving the riders suspended against the wall in a vertical position.
What minimum coefficient of friction between a rider’s clothing and the wall of the cylinder is needed to keep the 75
kg rider from slipping?
27. What is the apparent weight (same as normal reaction force R) of a 75 kg rider while going over the hill of a roller
coaster with a 10-meter radius and a velocity of 4 m s-1.
28. A small ball of mass 0.047 kg is suspended from a string of length 0.53 m and whirled in a circle lying in the horizontal
plane. If the string makes an angle of 21° with the vertical, find the centripetal force experienced by the ball.
5 | Work, Energy, Power
29. A student weighing 700 N climbs at constant speed to the top of a 12 m vertical rope in 15 s. Calculate the work and
power expended by the student to overcome gravity?
Work
Power30. What is the kinetic energy of a 75 kg human running at 5 m s-1? How high off the ground would they need to be to
have the same energy stored up as gravitational potential energy?
31. What is the maximum velocity of a 2 kg pendulum that is released from the position shown?
32. A father pulls his daughter on a sled and pulls with a force of 50 N at an angle of 30° with the ground to move the sled
a horizontal distance of 10 meters. Calculate the horizontal work done on the sled and the child’s final velocity after
being pulled this distance.
33. You are characterizing the elasticity of a spring from the back room and you measure the k constant to be 50 N m-1.
a. Draw in the graph showing the relationship between Force and Stretch Distance for this spring
b. What is the work required to stretch the spring 0.6 m?
34. A bicycle with an initial velocity of 10 m/s coasts to a net height of 4 m. What is the velocity at the top neglecting
friction?
A pole-vaulter of mass 59.7 kg falls from a height of 4.76 m onto some foam.
a. Calculate the maximum kinetic energy on impact.
b. If the foam deforms by 81 cm, calculate the average force exerted on the pole-vaulter.
6 | Momentum
35. A 0.15 kg baseball moving at 26 m s-1 is slowed to a stop by a catcher who exerts a constant opposing force of 390 N.
How long does it take this force to stop the ball?
36. Why does an airbag protect you in a car crash? Use the words force, time, and impulse in your description.
37. A grocery shopper tosses an 8.8 kg bag of rice (object A) into a stationary 18.2 kg grocery cart (object B). The bag hits
the cart with a horizontal speed of 6.8 m s-1. What is the final speed of the cart and bag?
38. What is the total impulse represented by this graph?
39. A ball of mass 0.40 kg travels horizontally and strikes a vertical wall with a speed
of 5.0 m s-1. It rebounds horizontally with a speed of 3.0 m s-1. The ball is in
contact with the wall for a time of 0.20 s. What is the average magnitude of the
force exerted by the ball on the wall? (pay attention to direction!)
7 | Waves
40. You are listening to the radio and use a stopwatch to measure 0.45 seconds between each beat for the catchy song
that comes on. What is the frequency of this tempo in Hertz?
41. Sound waves travel at about 340 m/s. You plunk an E below middle C on the piano and measure a frequency of 164.8
Hz. What is the wavelength for this wave?
42. Draw a wave with a wavelength of 6 boxes and an amplitude of 3 boxes
43. The graph shows measurements of height h of sea level at different times t in the Bay of Fundy.
Which of the following give the approximate amplitude and period of the tides
44. Sketch the graphs for a spring oscillator [Show Less]