WorksheetsPhysics Ramp Problems
Total questions: 15
Worksheet time: 2hrs 21mins
Name
Class
Date
1.
A box weighing 46 newtons rests on an incline that makes an angle of 25° with the horizontal. What is the magnitude of the component of the box’s weight perpendicular to the incline?
a)
19N
b)
21N
c)
42N
d)
26N
2.
When the sum of all the forces acting on a block on an inclined plane is zero, the block
a)
must be at rest
b)
must be accelerating
c)
may be slowing down
d)
may be moving at a constant speed
3.
An 8.0-newton block is accelerating down a frictionless ramp inclined at 15° to the horizontal. What is the magnitude of the net force causing the block’s acceleration?
a)
0N
b)
2.1N
c)
7.7N
d)
8.0N
4.
A 1.0 × 105-newton truck at rest on a hill that makes an angle of 8.0° with the horizontal. What is the component of the truck’s weight parallel to the hill?
a)
1.4E3N
b)
1E4N
c)
1.4E4N
d)
9.9E4N
5.
A cart rolls down an inclined plane with constant speed as shown in the diagram below. Which arrow represents the direction of frictional force?
a)
A
b)
B
c)
C
d)
D
6.
A 10.-newton block is sliding down a 30-degree incline at a constant speed. What is the force of friction?
a)
5N
b)
4.9N
c)
10N
d)
98N
7.
A 10.0-kilogram mass held at rest on a frictionless 30.0º incline by force F. What is the magnitude of force F?
a)
49.1N
b)
98.1N
c)
85N
d)
9.81N
8.
A 3.0-kg block slides on a frictionless 20° inclined plane. A force of 16 N acting parallel to the incline and up the incline is applied to the block. What is the acceleration of the block?
a)
2 m/s^2 down the incline
b)
5.3 m/s^2 up the incline
c)
2 m/s^2 up the incline
d)
3.9 m/s^2 down the incline
9.
A 50.-kilogram crate is on a frictionless plane at some angle to the horizontal. The crate is pushed at constant speed up the incline by force F. If angle were increased, what would be the effect on the magnitude of force F?
a)
increase
b)
decrease
c)
stay the same
d)
not enough info
10.
The diagram represents an object being held at rest on a frictionless incline. The net force is equal to
a)
zero
b)
normal force
c)
weight
d)
friction
11.
A block of mass 5 kilograms lies on an inclined plane at 37 degrees. The horizontal and vertical supports for the plane have lengths of 4 meters and 3 meters, respectively. The coefficient of friction between the plane and the block is 0.3. The magnitude of the force F necessary to pull the block up the plane with constant speed is most nearly
a)
30
b)
42
c)
49
d)
50
12.
A block of mass 5 kilograms lies on an inclined plane at 37 degrees. The horizontal and vertical supports for the plane have lengths of 4 meters and 3 meters, respectively. The coefficient of friction between the plane and the block is 0.3. The magnitude of the force F necessary to pull the block up the plane with constant speed is most nearly
a)
30
b)
42
c)
49
d)
50
13.
A wooden box is first pulled across a horizontal steel plate. The box is then pulled across the same steel plate while the plate is inclined. How does the force required to overcome friction in the inclined case compare to the horizontal case ?
a)
bigger
b)
smaller
c)
the same
d)
not enough info
14.
A block weighing 10.0 newtons is on a ramp inclined at 30.0° to the horizontal. A 3.0-newton force of friction, Ff , acts on the block as it is pulled up the ramp at constant velocity with force F, which is parallel to the ramp, as shown in the diagram below. What is the magnitude of force F?
a)
7N
b)
8N
c)
10N
d)
13N
15.
A block rests on a ramp, making angle θ with the horizontal. As theta is increased
a)
the blocks mass will decrease
b)
the blocks mass will increase
c)
the blocks component of weight parallel to the ramp will increase
d)
the blocks component of the weight parallel to the ramp will decrease
100 %
