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WorksheetsIntro to Force & Motion Review
Total questions: 30
Worksheet time: 43mins
Name
Class
Date
1.
This image represents a which type of friction?
a)
sliding
b)
rolling
c)
fluid
d)
static
2.
This image represents a which type of friction?
a)
sliding
b)
rolling
c)
fluid
d)
static
3.
This image represents a which type of friction?
a)
sliding
b)
rolling
c)
fluid
d)
static
4.
This image represents a which type of friction?
a)
sliding
b)
rolling
c)
fluid
d)
static
5.
This image represents a which type of friction?
a)
sliding
b)
rolling
c)
fluid
d)
static
6.
What is the resultant velocity of a dolphin swimming at 12 km/hr against a 4 km/hr current ?
a)
12 km/hr
b)
8 km/hr
c)
16 km/hr
d)
48 km/hr
7.
What will the resultant force and direction of the ball be in this situation?
a)
no motion
b)
50N --> (right)
c)
200 <--- (left)
d)
50N <-- (left)
8.
What term best reflects this image?
a)
friction
b)
force
c)
static
d)
acceleration
9.
What is the resultant force depicted in this drawing?
a)
800 N up
b)
600 N down
c)
200 N up
d)
400 N down
10.
What is the resultant force?
a)
200 N right
b)
200 N left
c)
100 N up
d)
0 N (no movement)
11.
What is the resultant force of the car in the image?
a)
300 N (forward)
b)
200 N (forward)
c)
100 N (forward)
d)
400 N (forward)
12.
In order to get the car rolling the person's __ force must be __ than the __ force.
a)
static, effort, less
b)
effort, less, effort
c)
static, greater, effort
d)
effort, greater, static
13.
How would the friction between the person walking and the ground be affected if the ground was covered in ice?
a)
The friction would increase, making it easier to get traction.
b)
The friction would decrease, making it slippery and difficult to walk.
c)
Friction would remain the same with no change in the ability to walk.
14.
Calculate the average speed of an 8th graders running a 5 K (kilometer) race if it takes them 30 min to complete.
a)
150 km/hr
b)
10 km/hr
c)
.166 km/ hr
d)
not enough information
15.
The force opposing your push when moving a large piece of furniture is
a)
static friction
b)
rolling friction
c)
kinetic friction
d)
net force
16.
In order for movement to occur, forces must be
a)
unbalanced
b)
balanaced
c)
equal
17.
Velocity is speed along with the ___
a)
rate
b)
friction
c)
gravity
d)
direction
18.
Increasing the mass on an object causes the force of friction to
a)
stay the same
b)
increase
c)
decrease
19.
Rough surfaces between two surfaces __ the force of friction, while smooth ones __ the force of fricton.
a)
increases, decreases
b)
decreases, increases
c)
remains the same, remains
20.
As a roller-coaster car starts down a slope, its speed is 4 m/s. But 3 seconds later, at the bottom, its speed is 22 m/s. What is its average acceleration?
a)
6 m/s/s OR 6 m/s2
b)
7.33 m/s/s OR 7.33 m/s2
c)
8.66 m/s/s OR 8.66 m/s2
21.
A car is traveling 25 km/hr, suddenly a motorcycle pulls out in front of the car, the automatic breaking system stops the car in 2.5 sec. What is the acceleration/deceleration?
a)
+10 km/hr/sec
b)
- 10 km/hr/sec
c)
+62.5 km/hr/sec
d)
-62.5 km/hr/sec
22.
Mrs Zucker & Mrs Scarry drove from LA convention center to Santa Maria 160 miles north through traffic. If the trip took 4 hours, what was their average speed for the trip?
a)
80 mi/hr
b)
65 mi/hr
c)
60 mi/hr
d)
40 mi/hr
23.
How far did a group of skateboarders travel if their speed was 15 km/hr and they boarded for 3 hours?
a)
15 km
b)
30km
c)
45 km
d)
5 km
24.
What is occurring at the time between 20 and 50 seconds?
a)
Constant speed
b)
Speed is changing
c)
No motion
d)
slow motion
25.
Using information from the graph, what can be determined about the speed of the bus?
a)
The speed is constant.
b)
The speed is changing.
c)
The bus isn't moving
d)
the wheels on the bus go round and round
26.
Describe what is happening from point C to D
a)
no motion
b)
steady speed
c)
acceleration
d)
deceleration
27.
Describe what is happening from point A to B
a)
no motion
b)
steady speed
c)
acceleration
d)
deceleration
28.
Describe the motion of letter C
a)
no motion
b)
increasing speed
c)
decreasing speed
29.
Compare the motion of line B to D
a)
B is moving faster than D
b)
B is moving slower than D
30.
Calculate the velocity of a bus traveling 390 miles from San Fransisco south to Los Angeles if the trip took 6 hours.
a)
60 mi/hr
b)
65 mi/hr
c)
70 mi/hr
d)
55 mi/hr
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