WorksheetsPhysics Test 7
Total questions: 11
Worksheet time: 55mins
An object rolls down a ramp as shown. The mass of the object is 3.0 kg. What is the kinetic energy of the object when it is halfway down the ramp.
50 J
25 J
100 J
0 J
The mass of the coaster car shown below is 250 kg. Point 1 is 100.0 m above the ground. Point 3 is 55 m above the ground. The speed at point 3 is 27.0 m/s. Calculate the total mechanical energy of the system.
245 000 J
392 000 J
176 000 J
56 000 J
The drawing represents a roller coaster car at different positions on a track. At which of these positions on the track was the kinetic energy being transformed into potential energy for the roller coaster car?
at both A and C
B
D
at both B and C
After beginning his run, at which of the following points on the ski slope is the skier moving the slowest?
X
Y
Z
How much work is being done on this box? HINT: W = Fd
500 J
1500 J
3.0 J
1000 J
At which point does the ball have both potential and kinetic energy?
A
B
C
D
A baseball player pitches a 0.16-kg baseball at 14 m/s. Calculate the kinetic energy for the baseball.
15.68 J
7.03 J
23.9 J
11,01 j
A 1200-kg car is moving northward at a velocity of 18 m/s. What is the car’s momentum (p)? HINT: p = mv
32 200 north
21 600 north
27 500 north
16 600 north
A 5.0 kg ball is rolling down a hill at a velocity of 3.5 m/s. What is its kinetic energy? HINT: KE = 1/2 mv2
30.63 J
18.75 J
42.56 J
37.98 J
A soccer ball with a mass of 0.50 kg is suspended 2.0 meters above the ground. What is its gravitation potential energy? HINT: PE = mgh, where g= 9.8 N/kg
9.8 J
6.32 J
5.95 J
10.7 J
How much work is done on an object with a weight of 15 N if it is lifted it to 8.0 meters above the ground?
HINT: W = Fd
120 J
60 J
95 J
165 J
