KE PE & Q
KE of a 5 kg object moving at 2 m/s.
10 J
Walking up the stairs vs. running up the stairs, which is more work?
They are the same amount of work
What the slope of a velocity/time graph tells you
Acceleration
Centripetal force points this direction
toward the center of the circle
First woman inducted into the Rock & Roll Hall of Fame
Aretha Franklin
Standard unit for Q
Joules (J)
The definition of a Watt is...
Joule per second
Distance it takes a car to stop that was going 10 m/s and accel = -2 m/s^2
25 m
A truck hits a bug. Which force is larger? Force from truck on bug OR force from bug on truck
They are equal
Planet in our solar system with the longest day
Venus
At the bottom KE = 50 J. What is the total energy at the top?
50 J
Power if 400 J are used in 10 seconds. Include the unit.
40 Watts
Car initially going 16 m/s accelerates to 20 m/s over 36 meters. Find acceleration.
2 m/s^2
Centripetal force if the mass is 3 kg, speed is 0.5 m/s and r is 0.25 m.
3 N
A bone babies are born without
Kneecap
5 kg object 5 m high dropped from rest will have this much KE at the bottom.
245 J
200 N object lifted up 3 meters gains this much PE. Include the unit.
600 Joules
A basketball player jumped up and was in the air for 0.8 seconds. How high did they jump?
3.1 m
An object is being spun in a circle with 20 N of tension. What will the force become if the mass of the object doubles but speed & radius stays the same?
40 N
How many elements are currently on the periodic table?
118
Object launched vertically up from the ground at 3 m/s can reach this max height.
0.46 m
1000 kg car slows from 30 m/s to 10 m/s. Friction did this much work.
400,000 J
Football kicked at 22 m/s at an angle of 60*. Find vertical AND horizontal velocity at the highest point.
velocity y = 0
Velocity x = 11 m/s
An object is being spun in a circle with 20 N of tension. What will the force become if the mass of the object doubles, the radius doubles, but speed stays the same?
20 N
Name all 5 spice girls
Baby Spice, Sporty Spice, Ginger Spice, Crazy Spice, Posh Spice (Emma, Mel C, Geri, Mel B, Victoria)