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Quiz; Incline Plane basics and problems

Total questions: 30

Worksheet time: 2hrs 46mins

Name
Class
Date
1.

The diagram above shows a box being pulled up the ramp. Which letter represents the weight?

a)

A

b)

B

c)

C

d)

D

2.

If an object is at rest on an inclined plane, which of the following forces is greatest?

a)

Normal Force

b)

Friction

c)

Weight

d)

Both Normal Force and Weight are equal, so they both are the greatest.

3.
If an object is at rest on an inclined plane, which of the following forces is greatest?
a)
Normal Force
b)
Friction
c)
Weight
d)
Both Normal Force and Weight are equal, so they both are the greatest.
4.

Which of the following is the expression for the Normal Force?

a)

FN = mg cos(ϴ)

b)

FN = mg sin(ϴ)

c)

FN = mg sin(180-ϴ)

d)

FN = mg cos(90-ϴ)

5.

Which of the following is the expression for the Parallel Force?

a)

FN = mg cos(ϴ)

b)

FN = mg sin(ϴ)

c)

FN = mg sin(180-ϴ)

d)

FN = mg cos(90-ϴ)

6.
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
7.
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
8.
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
9.

If there is no friction, then the acceleration would be equal to

a)

mg

b)

sin(θ)mg

c)

g

d)

sin(θ)g

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 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
12.

How do the normal force, friction force, and tension change when the angle θ is increased?

a)

A

b)

B

c)

C

d)

D

13.

A heavy wooden block is dragged by a force F along a rough steel plate, as shown in the diagrams for two cases. The magnitude of the applied force F is the same for both cases. The normal force in (ii), as compared with the normal force in (i) is:

a)

the same

b)

greater

c)

less

d)

none of the above

14.

A block slides down a frictionless inclined plane that makes an angle θ with the horizontal.

Which of the expressions shown below expresses force which is parallel to the inclined surface?

a)

mg cos

b)

mg sin

c)

g

d)

2g

15.

As the angle of the incline increases, what happens to the normal force?

a)
Normal force decreases
b)
Normal force increases
c)
Normal force becomes negative
d)
Normal force remains constant
16.

Given the FBD, which of the following must be true?

a)

The frictional force must be accelerating the system to the left.

b)

The box must be accelerating to the right.

c)

The box must be moving to the right.

d)

The FBD is incorrectly drawn. This situation isn't possible

17.

A block slides down a 27° incline. It is observed to be speeding up. The coefficient of kinetic friction between block and incline is μs = 0.14. The force responsible for the acceleration of the block down the inclined is equal to ​ (a)   and the force keeping the block on the surface as it slides down is equal to ​ ​ (b)   . Therefore, the acceleration of the block as it slides down the slope is ​ (c)   . ​ ​

Choose from the below words
mgsin⁡θmg\sin\theta
mgmg
5.6 ms25.6\ \frac{m}{s^2}
−4.3 ms2-4.3\ \frac{m}{s^2}
4.3 ms24.3\ \frac{m}{s^2}
cos⁡θ\cos\theta
sin⁡θ\sin\theta
FgF_g

mgcos⁡θmg\cos\theta  

3.2 ms23.2\ \frac{m}{s^2}  

18.

In the diagram, a 10 kg block is at rest on an inclined plane at 15o to the horizontal.

As the angle of the incline is increased to 30o, the mass of the block will

a)

decrease

b)

increase

c)

stay the same

19.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
20.
Name the missing force...
a)
normal force
b)
applied force
c)
frictional force
d)
tension force
21.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
22.
What is the direction of the force of gravity acting on the box?
a)
down the ramp to the right
b)
straight up
c)
straight down
d)
up the ramp to the left
23.
A box is moving to the left up a ramp. Which way is the force of friction pointing?
a)
down the ramp to the right
b)
up the ramp to the left
c)
there is no friction
d)
straight up
24.
What is the direction of the tension force from the attached rope?
a)
 there is no tension
b)
straight up
c)
straight down
d)
up the ramp to the right
25.
A box slides across a perfectly smooth floor at a constant velocity. (The phrase "perfectly smooth" suggests that there is NO friction). What forces act on the box?
a)
tension, gravity
b)
tension, gravity, normal force
c)
tension, gravity, normal force, friction
d)
gravity, normal force, friction
26.

What is the total mass of the system?

a)

4m

b)

5m

c)

9m

d)

14m

27.

What is the magnitude of net force acting on the three-block system? Assume no friction.

a)

mg

b)

3mg

c)

4mg

d)

5mg

28.

This system is released but does not move. What is the magnitude of static friction experienced by the 9m block?

a)

3mg Newtons

b)

9mg Newtons

c)

14mg Newtons

d)

Cannot be determined without μ

29.

Block B has a mass of mB and block C has a mass of mC. Which of the following is a correct derivation for the normal force acting on block B?

a)

mBg

b)

(mB + mC)g

c)

(mB - mC)g

d)

2(mB + mC)g

30.

What would the acceleration of m2 be if m1 was 4 kg and m2 is 5kg?

a)

1.1 m/s/s, 270 degrees

b)

1.1 m/s/s, 90 degrees

c)

.92 m/s/s, 270 degrees

d)

.92 m/s/s, 0 degrees

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