WorksheetsPHYSICS MIDTERM
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What is the common formula for work?
a)
W=Fv
b)
W=Fd
c)
W=Fd2
d)
W=F2d
2.
A child moving at constant velocity carries a 2N ice-cream cone 1 m across a level surface. What is the work done on the ice cream cone?
a)
0 J
b)
0.5 J
c)
2 J
d)
20 J
3.
A construction worker pushes a wheelbarrow 5 m with a horizontal force of 50 N. How much work is done?
a)
10J
b)
55J
c)
250J
d)
1250J
4.
A child pulls a balloon for 12 m with a force of 1N at an angle of 60 degrees. How much work does the child do on the balloon?
a)
-10J
b)
-6J
c)
6J
d)
12J
5.
Which of the following formulas would be used to calculate kinetic energy?
a)
KE=1/2kx2
b)
KE=-1/2kx2
c)
KE=1/2mv2
d)
KE=-1/2mv2
6.
What is the kinetic energy of a 0.135 kg baseball thrown at 40.0m/s?
a)
54.0J
b)
87.0J
c)
108J
d)
216J
7.
What is the potential energy of a 1kg mass 1 m above the ground?
a)
1.0J
b)
9.8J
c)
10J
d)
98J
8.
How much elastic potential energy is stored in a bungee cord with a spring constant of 10.0N/m when the cored is stretched 2.00m?
a)
10J
b)
20J
c)
40J
d)
200J
9.
A 3.00 kg toy falls from a height of 1m. What will the kinetic energy of the toy be just before the toy hits the ground?
a)
0.98 J
b)
9.8J
c)
29.4J
d)
294J
10.
If the mass is displaced 0.35 m from its equilibrium position, the restoring force is 7.0N. What is the spring constant?
a)
-0.05 N/m
b)
-2 N/m
c)
0.05 N/m
d)
20 N/m
11.
If the pendulum completes exactly 12 cycles in 2 min. what is the frequency of the pendulum?
a)
0.10 Hz
b)
0.17 Hz
c)
6.0 Hz
d)
10 Hz
12.
If the pendulum completes exactly 12 cycles in 2.0 min, what is the period of the pendulum?
a)
0.17 s
b)
0.10 s
c)
6.0 s
d)
10 s
13.
A pinball machine uses a spring that is compressed 4 cm to launch a ball. If the spring constant is 13 N/m, what is the force on the ball at the moment the spring is released?
a)
52 N
b)
0.52 N
c)
5.2 N
d)
0.052 N
14.
A wave has a wavelength of 8 cm. You observe 15 waves pass a certain point in 5 seconds. What is the frequency of this wave?
a)
8 waves/s
b)
3 waves/s
c)
150 waves/s
d)
24 waves/s
15.
A wave has a wavelength of 6 cm. You observe 10 waves pass a certain point in 5 seconds. What is the speed of this wave?
a)
6 m/s
b)
2 m/s
c)
60 m/s
d)
0.12 m/s
100 %
