WorksheetsTest 02 Review
Total questions: 18
Worksheet time: 19mins
In the equation F = ma, the variable "F" refers to the
normal force
gravity force
friction force
net force
A 2 kg block is in free fall. The force of gravity acting on it is
0 N
2 N
9.81 N
19.6 N
A coefficient of friction is (typically) a value between
-1 and 1
0 and 1
-1 and 0
-10 and 10
The mass of this box is
300 kg
9.81 kg
30.6 kg
10.2 kg
The weight of this box is
300 N
9.81 N
30.6 N
10.2 N
The magnitude of the net force on this box is
30.6 N
9.81 N
900 N
300 N
100 N
The magnitude of this box's acceleration is
30.6 m/s^2
9.81 m/s^2
3.3 m/s^2
29.4 m/s^2
100 m/s^2
If this box had an initial velocity of 12.0 m/s to the right, its velocity after 1.4 seconds would be
7.4 m/s
10.6 m/s
12.0 m/s
16.6 m/s
100 m/s
An object's net force has an x-component of 3 N and a y-component of -4 N. The magnitude of the net force is
1 N
-1 N
5 N
-5 N
7 N
An object is subjected to a net force of <3.00, 4.00> Newtons. The angle of the net force above the horizontal at this moment is
36.9°
41.4°
48.6°
53.1°
stupid
An elevator is moving upward while slowing down in a frictionless shaft. The force of tension in the cable is _____ the weight of the elevator
greater than
less than
equal to
competitive with
An elevator is moving upward at a constant speed in a frictionless shaft. The force of tension in the cable is _____ the weight of the elevator
greater than
less than
equal to
making fun of
An elevator is moving downward while speeding up in a frictionless shaft. The force of tension in the cable is _____ the weight of the elevator
greater than
less than
equal to
preparing a fine cuisine for
A box (m = 20 kg) is being pushed at an angle of 30° below the horizontal with a force of 60 N. It is moving horizontally at a constant speed. The normal force is
144.2 N
166.2 N
196.2 N
226.2 N
248.2 N
A box (m = 20 kg) is being pushed at an angle of 30° below the horizontal with a force of 60 N. It is moving horizontally at a constant speed. The force of friction is
30 N
52 N
60 N
196.2 N
A box (m = 20 kg) is being pushed at an angle of 30° below the horizontal with a force of 60 N. It is moving horizontally at a constant speed. The coefficient of kinetic friction is
0.23
0.44
0.87
4.35
A box is sliding on a frictionless ramp oriented at an angle θ above the horizontal. The normal force on the box is
mg
mg*sin(θ)
mg*cos(θ)
mg*tan(θ)
A box is sliding on a frictionless ramp oriented at an angle θ above the horizontal. The acceleration of the box is
0
g
g*cos(θ)
g*sin(θ)
