Satellites
If you stopped an earth satellite dead in its tracks, what would happen to it?
Fall to Earth
If a pendulum swings back and forth 20 times in 10 seconds, what is the period, of the pendulum?
0.5 sec/cycle
Considering Newton’s 3rd Law of motion, if two people push on two scales back to back, and one person pushes harder than the other, what would you expect the scales to read?
Same
If an ant moves 100 cm in 2 seconds, what is its average speed?
50 cm/s
In free fall a rock will fall how far in 1 second? (Use 10 m/s2 for gravity)
5 m
If Elon shoots a satellite in a horizontal motion above our atmosphere at greater than 8 km/s, what will be the shape of the orbit?
Elliptical
If you shorten the string on a pendulum what will happen to its frequency?
Increase
According to Newton’s 2nd Law of motion, force = mass x acceleration, how fast would a car accelerate that has a mass of 30 kg and is pushed with a force of 90N?
3 m/s/s
If an airplane is flying 100 km/hr and encounters a tailwind of 20 km/hr, what will be its final velocity?
120 km/hr
If a projectile has a vertical velocity of 1 m/s and a horizontal velocity of 1 m/s and is thrown at 45 degrees, what is its resultant velocity?
1.41 m/s
Does the period of a satellite increase or decrease as it gets further from the planet?
Increase
On a merry-go-round, the cat on the outer rail is located 3 times farther from the axis of rotation than the dog on the inner rail. If the dog near the inner rail and has a rotational speed of 4 RPM and a tangential speed of 2 m/s, what will be the tangential speed of the cat sitting along the outer rail?
6 m/s
If a probe leaves the Earth's gravitational pull at 70 km/sec what will it's speed in 10 seconds afterward?
70 km/sec
If my Prius can go from 0-60 mph in 30 seconds, what will be its acceleration?
2 mph/second
A rock is thrown and travels a distance of 40 meters in 2 seconds. What is its horizontal velocity?
20 m/s