I have a few Multi-Choice questions:
Explain how you got the answer...
Janice throws a stone horizontally from the roof edge of a 50 meter high dormitory. It hits the ground at a point 60m from the building. What was the initial velocity?
a. Sq. Rt of 2 m/s
b. 22 m/s
c. 5.5 m/s
d. 19 m/s
e. 25m/s
An Olympic athlete throws a javelin at four different angles above the horizontal, each with the same speed at 30 degrees, 40 degrees, 60 degrees, and 80 degrees. Which two throws cause the javelin to land the same distance away?
a. 30 and 60 degrees
b. 30 and 80 degrees
c. 35 and 65 degrees
d. 40 and 60 degrees
e. 40 and 80 degrees
Which is usually larger: the kinetic coefficient of friction or the static coefficient of friction?
a. static
b. neither
c. kinetic
If a spring operated gun can shoot a pellet to a height of 100m on Earth, how high could the pellet rise if fired on the moon?
a. 3.60km
b. 600m
c. 16.7m
d. 3600m
e. 100m
In an inelastic collision, the final total momentum is
a. insufficient information to answer
b. more than the initial momentum
c. the same as the initial momentum
d. less than the initial momentum
Six kilograms on Earth has what mass on the moon?
a. 1/6kg
b. 1 pound
c. 1 kg
d. 36 kg
e. 6 kg
What are the dimensions of a square acre of ground if 1 square mile = 640 acres?
a. 209'x209'
b. 194'x194'
c. 156'x156'
d. 147'x147'
10mL is equal to
a. 0.01 L
b. 1.0 kL
c. 0.10 L
d. 10^-6L
e. 0.001ML
Concrete is sold by the cubic yard. What is the mass, in kilograms, of one cubic yard of concrete that is five times as dense as water? (1m = 1.094 yards, and 1.000 m^3 of water has a mass of 1.000 x 10 ^3kg.)
a. 746kg
b. 6546 kg
c. 3819 kg
d. 8733 kg
e. 2420 kg
When the ball is thrown straight up, the acceleration at the highest point is
a. zero
b. horizontal
c. downward
d. minimum
e. upward
Explain how you got the answer...
Janice throws a stone horizontally from the roof edge of a 50 meter high dormitory. It hits the ground at a point 60m from the building. What was the initial velocity?
a. Sq. Rt of 2 m/s
b. 22 m/s
c. 5.5 m/s
d. 19 m/s
e. 25m/s
An Olympic athlete throws a javelin at four different angles above the horizontal, each with the same speed at 30 degrees, 40 degrees, 60 degrees, and 80 degrees. Which two throws cause the javelin to land the same distance away?
a. 30 and 60 degrees
b. 30 and 80 degrees
c. 35 and 65 degrees
d. 40 and 60 degrees
e. 40 and 80 degrees
Which is usually larger: the kinetic coefficient of friction or the static coefficient of friction?
a. static
b. neither
c. kinetic
If a spring operated gun can shoot a pellet to a height of 100m on Earth, how high could the pellet rise if fired on the moon?
a. 3.60km
b. 600m
c. 16.7m
d. 3600m
e. 100m
In an inelastic collision, the final total momentum is
a. insufficient information to answer
b. more than the initial momentum
c. the same as the initial momentum
d. less than the initial momentum
Six kilograms on Earth has what mass on the moon?
a. 1/6kg
b. 1 pound
c. 1 kg
d. 36 kg
e. 6 kg
What are the dimensions of a square acre of ground if 1 square mile = 640 acres?
a. 209'x209'
b. 194'x194'
c. 156'x156'
d. 147'x147'
10mL is equal to
a. 0.01 L
b. 1.0 kL
c. 0.10 L
d. 10^-6L
e. 0.001ML
Concrete is sold by the cubic yard. What is the mass, in kilograms, of one cubic yard of concrete that is five times as dense as water? (1m = 1.094 yards, and 1.000 m^3 of water has a mass of 1.000 x 10 ^3kg.)
a. 746kg
b. 6546 kg
c. 3819 kg
d. 8733 kg
e. 2420 kg
When the ball is thrown straight up, the acceleration at the highest point is
a. zero
b. horizontal
c. downward
d. minimum
e. upward