Kinematics
How much time does it take a car moving at a speed of 25m/s to cover 200m?
8 seconds
You push a 4kg box to the right with a force of 20N, what is the box's acceleration?
5 m/s2
How many seconds are in one hour?
3600 seconds
-5 + 13 = ?
8
The Great Pyramids of _____
Giza
A sprinter accelerates at a constant rate of 2 m/s2 in the first 4 seconds of a race. What is their speed after the 4 seconds?
*Must use correct units.
8m/s
What forces are acting on a person sliding down a playground slide?
Weight, normal force, and friction
What is the weight of a 5kg object?
49N
-7 - 24 = ?
-31
Who is the best footballer to come out of Egypt?
Mohamed Salah
A car is moving at a velocity of 30 m/s then slows down to a velocity of 18 m/s in 4 seconds. What is the car's acceleration rate during this time?
- 3m/s2
A box is being pulled to the right with a tension force equal to 30 N while friction from the ground is applying a force of 12 N. What is the net horizontal force acting on the box.
18 N to the right
What is thrust? Give an example.
Must mention:
- Pushing gas (or other mass) in one direction to move an object in the opposite direction
- Balloon, rocket, or other valid example
The 2nd law of motion is F=ma. Derive an equation for mass in terms of force and acceleration.
m = F/a
What three colors are on the Egyptian flag?
Red, white, and black
Florencia served a tennis ball at a speed of 90 km/h. By the time it reached her opponent, the ball was moving at a speed of 72 km/h. What is the average speed of the ball during this time?
81 km/h
While skydiving, Eduardo jumps from an airplane 1000 m above the ground. At some point, he opens up his parachute. If Eduardo has a mass of 65kg, how much force should the parachute be exerting on him such that he maintains a constant speed?
637 N
What does the c in the famous equation:
E = mc2
represent?
The speed of light
Vavg = (Vi + Vf) / 2
Derive an equation for Vi in terms of Vavg and Vf.
Vi = 2Vavg - Vf
Ra
While horseback riding, Antonella (on her horse) jumped over a hurdle. If the horse jumped upwards with a speed of 3 m/s, how much time did it spend airborne?
0.61 seconds
Alejandro, a professional diver, jumps off a 12 m high diving board into a swimming pool. Once he enters the water, he has an acceleration rate of 1 m/s2 upwards. What is the force applied on him by the water?
Assume that his mass is 65 kg.
702 N
Describe the 4-step method we used in the friction lab to find the friction force acting on our object.
Must mention:
- Sliding the object on the surface
- Timing from a start point to when it stops
- Finding average speed first
- Finding initial speed second
- Finding acceleration third
- Find friction force fourth
If F=ma and a = (Vf - Vi) / t , derive an equation for F in terms of Vf, Vi, t, and m.
F = m(Vf - Vi)/ t
Name an ancient Egyptian pharaoh other than Tutankhamun. You can also name any Egyptian president.
To be validated