แผ่นงานKE PE Calculations Practice
คำถามทั้งหมด: 20
A cheetah can run briefly with a speed of 31 m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?
1457 J
728.5 J
45,167 J
22,583.5 J
A ping pong ball has a mass of about 2.45 g. Suppose that ball is hit across the table with a speed of about 4.0 m/s. What is its kinetic energy?
19.6 J
0.0196 J
4.9 J
0.0049 J
What is the kinetic energy of a 26 kg eagle, flying at an altitude of 65 m at a speed of 19 m/s?
32,110 J
16,055 J
4693 J
247 J
A polar bear has an average mass of 500 kg. If its maximum kinetic energy is 60500 J, what is its top speed?
242 m/s
121 m/s
15.56 m/s
15,125,000 m/s
An airplane designed to carry a space shuttle has a top speed of 236 m/s, at which its kinetic energy is 9,760,000,000 J. What is its mass?
175,237 kg
41,355,932 kg
87618.5 kg
350,474 kg
My bowling ball, when dropped from a roof, has 78,750 J of kinetic energy. If the ball has a mass of 7 kg, at what speed does it hit the ground?
22,500 m/s
150 m/s
33.9 m/s
1148 m/s
What is the mass of an object that creates 33,750 joules of energy by traveling at 30 m/s?
75 kg
15 kg
1125 kg
37.5 kg
Find the speed of a model rocket that has a mass of 15 kg and Has 80,000 J of kinetic energy.
10666.7 m/s
103.9 m/s
5333.3 m/s
73.03 m/s
A book with a mass of 1.5 kg is placed on a shelf 4 meters high. What is the potential energy of the book?
0.5 J
10.2 J
100.5 J
58.8 J
A ball with a mass of 0.3 kg is thrown straight up into the air to a height of 6 meters. What is the potential energy of the ball at its highest point?
3.42 Joules
0.18 Joules
9.81 Joules
17.64 Joules
A pencil with a mass of 0.1 kg is dropped from a height of 2 meters. What is the potential energy of the pencil just before it hits the ground?
1.96 Joules
0.02 Joules
2 Joules
0.2 Joules
A toy car with a mass of 0.2 kg is placed on a ramp 5 meters high. What is the potential energy of the toy car?
0.5 Joules
2.5 Joules
15 Joules
9.8 Joules
What is the formula to calculate potential energy?
potential energy = mass * gravity * distance
potential energy = mass * acceleration * height
potential energy = mass * gravity * height
potential energy = force * distance
Which point has the most potential energy?
G
F
B
A
The faster an object moves, the ________ kinetic energy it has.
more
less
The coaster at B is at -
Maximum PE, Minimum KE
Minimum PE, Minimum KE
Minimum PE, Maximum KE
Maximum PE, Maximum KE
Which of these has the most potential energy?
แป้นคำตอบKE PE Calculations Practice
คำถามทั้งหมด: 20
22,583.5 J
0.0196 J
4693 J
15.56 m/s
350,474 kg
150 m/s
75 kg
103.9 m/s
58.8 J
17.64 Joules
1.96 Joules
9.8 Joules
potential energy = mass * gravity * height
A
more
Minimum PE, Maximum KE
