Trigonometry
What is the acronym used to remember trigonomic functions?
SOHCAHTOA
What information may be calculated using the slope of a displacement-time graph?
Velocity
A car travels 2,400 meters in 120 seconds. What is the cars velocity?
20 m/s
Newton's First Law is also known as the Law of ______.
Inertia
What is the SI unit for displacement?
Meters (m)
The Pythagorean Theorem (a2 + b2 = c2)
What information may be calculated using the slope of a velocity-time graph?
Acceleration
A car accelerates from rest to 25 m/s in 8 seconds. What is the car's acceleration?
3.13 m/s2
How much force is needed to accelerate a 66 kg skier at 2 m/s2?
132 N
What is the SI unit for velocity?
A hiker walks 4 kilometers north and 7 kilometers east. What is the distance they traveled? What is their displacement? (must use SI unit in response)
Distance = 11,000 meters
Displacement = 8,062 meters NE
What information can be calculated using the area underneath a velocity-time graph?
Total displacement
An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.
1721.3 meters
A 5 kg block is pulled across a table by a horizontal force of 40 N with a frictional force of 8 N opposing the motion. Calculate the acceleration of the object.
6.4 m/s2
What is the SI unit for acceleration?
Meters per second squared (m/s2) OR m/s/s
A student stands 3 meters away from a wall. If there is a 59.0 degree angle between the resultant vector formed by the student's feet and the top of the wall, how high is the wall? Round to the nearest whole meter.
5 meters
What does a linear, upward line indicate on a displacement-time graph?
Traveling at a constant, positive velocity.
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.
8.1 m/s2
A wooden pallet carrying a load of 600 kg rests on a wooden floor. A forklift driver decides to push it without lifting it. What force must be applied to just get the pallet moving?
2472.12 N
What is the SI unit for force?
Newtons (N)
A 15-foot ladder is leaning against a house. The base of the ladder is 6 feet away from the house. What is the angle the ladder makes with the ground? Round to 3 sig. figs.
66.4 degrees
If the line on an velocity-time graph is flat (along the x-axis), what does that tell you about the object's motion?
It is not accelerating. If the line is not at 0 m/s, it is still moving, just at a constant rate.
If Michael Jordan has a vertical leap of 1.29 m, then what is his takeoff speed and his hang time (total time to move upwards to the peak and then return to the ground)?
vi = 5.03 m/s and hang time = 1.03 s
A 40 kg person sits in an elevator accelerating at 2 m/s2. The elevator has a mass of 500 kg. What is the tension in the elevator cable? If the person is standing on a scale that measures force, what will it read?
Tension = 6377.4 N
FN = 472.4 N
What is the SI unit for mass?
Kilograms (kg)