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Unit 6: Motion & Forces

Total questions: 57

Worksheet time: 3hrs 7mins

Name
Class
Date
1.
A distance vs. time graph shows an object's
a)
frame of reference
b)
speed
c)
acceleration
d)
favorite food
2.
LT4: The graph shows Ashley riding her bike to Maria's house. 
What is occurring from point A to point B?
a)
they are traveling at a constant speed
b)
they are decreasing in speed
c)
they stopped to take a break
3.
LT4: The graph shows Ashley riding her bike to Maria's house. 
What was occurring from point B to point C?
a)
She was increasing her speed.
b)
She stopped for 4 minutes
c)
She was decreasing in speed
4.
LT5: The rate at which velocity CHANGES is: 
a)
acceleration
b)
speed
c)
direction
d)
physics
5.
The graph represents
a)
no motion
b)
Constant velocity
c)
Acceleration
d)
negative acceleration
6.

The graph represents

a)

no motion

b)

constant velocity

c)

acceleration

d)

deceleration

7.
What is the equation to find speed?
a)
s=t/d
b)
s=d x t
c)
s=d/f
d)
s=d/t
8.
What is the SI unit for acceleration?
a)
m/s
b)
m
c)
m/s2
d)
s
9.
Acceleration of an object happens when things ________
a)
slow down
b)
go faster
c)
change direction (turn)
d)
All of the above
10.
A location to which you can compare other locations is called
a)
reference point
b)
motion
c)
location
d)
position
11.

The change of position over time is called

a)

position

b)

motion

c)

acceleration

d)

location

12.
In a distance time graph, the steeper the line the...
a)
greater the speed
b)
slower the speed
c)
speed has reached zero
d)
speed has not changed
13.
A vector is a quantity that has both magnitude and 
a)
speed
b)
altitude
c)
acceleration
d)
direction
14.
Stating that a man is traveling north at 30 m/s is an statement of his
a)
speed
b)
velocity
c)
accleration
d)
endurance
15.
True or False
It is possible for two objects to have the same speed but different velocities
a)
true
b)
false
16.
Which graph shows the object standing still?
a)
A
b)
B
c)
C
d)
D
17.
How long did it take this object to travel back to its reference/starting point?
a)
20 s
b)
30 s
c)
60 s
d)
100 s
18.

Below, is a graph representing Tom’s trip to school.

- What is the distance covered through the second segment, which is between 50 seconds, and 70 seconds?

a)

40 meters

b)

60 meters

c)

80 meters

d)

20 meters

19.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
20.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
21.
Which runner stopped for a rest?
a)
Albert
b)
Bob
c)
Charlie
22.
Speed is different from velocity because
a)
Velocity has a direction
b)
Speed uses Distance /Time
c)
Velocity doesn't include time
d)
Velocity doesn't include distance
23.
1.  Ray runs 30 feet north, 30 feet west, and then 30 feet south. What is the displacement?
a)
30 feet west
b)
90 feet 
c)
30 feet south
d)
0 feet
24.

How far will a train moving at 5.7 km/min go in 45 minutes?

a)

256.5 km

b)

0.12 km

c)

7.89 km

25.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
26.

Which has a greater speed, a heron that travels 600 m in 60 sec or a duck that travels 60 m in 5 sec?

a)

The duck

b)

The heron

c)

They both traveled at the same speed.

27.
The slope of a speed-versus-time graph represents acceleration.
a)
True
b)
False, direction
c)
False, intersection
28.

You are walking and start to slow down. Are you accelerating?

a)

yes

b)

no

29.

As you walk you make a right turn. Are you accelerating?

a)

yes

b)

no

30.
What is the difference between instantaneous speed and average speed?
a)
Average speed happens in a particular instant, Instantaneous speed is the speed of an object over a longer period of time.
b)
Instantaneous speed is never right, average speed is always right
c)
Instantaneous speed happens in a particular instant, Average speed is the speed of an object over a longer period of time.
d)
Do not pick this answer
31.

___________ forces always cause an object's motion to change.

a)

balanced

b)

unbalanced

c)

contact

d)

non-contact

32.

______________ is a force that always acts in the direction opposite of motion.

a)

applied

b)

friction

c)

gravity

d)

normal

33.

You are pulled to the surface of the earth due to the force of _________________

a)

gravity

b)

friction

c)

normal force

d)

contact force

34.

The force that resists sliding between two touching objects is called _____________________

a)

rolling friction

b)

static friction

c)

contact friction

d)

sliding friction

35.

When there is no net force acting on an object, the forces are considered ___________________

a)

balanced

b)

unbalanced

c)

contact'

d)

non-contact

36.

When the net force is not 0 N, the forces are considered ____________

a)

balanced

b)

unbalanced

c)

contact

d)

non-contact

37.

Which two characteristics do all forces have?

a)

motion and magnitude

b)

magnitude and direction

c)

direction and speed

d)

balance and direction

38.

What is the net force for this picture?

a)

0 N

b)

5 N

c)

485 N

d)

240 N

39.
If gravity "pulls" down on a skydiver, what force "pushes" up on that skydiver?
a)
microwelds
b)
air resistance
c)
Newton's 1st Law
d)
potential energy
40.
Newton's 3rd Law says what?
a)
F = M x A
b)
equal and opposite forces
c)
pulling downward
d)
pulling upward
41.

Something that can accelerate a moving object by changing the object's speed or direction would be considered

a)

a force

b)

inertia

c)

friction

d)

a Newton

42.

Forces are measured in

a)

inertia

b)

Newtons

c)

m/s

d)

kg

43.
In order to move something heavy, you might want to try...
a)
reducing the friction of the surface area
b)
reduce the height
c)
reduce your weight
d)
adding more direction
44.

A squirrel sits on the ground and eats a donut. We know the forces on him must be balanced because...

a)

Forces are always balanced

b)

the squirrel is not accelerating

c)

squirrels are projectiles

d)

he's eating a donut

45.
What symbol do we use to represent a "body" in a free-body diagram?
a)
small dot
b)
small box
c)
an outline of a human body
d)
small triangle
46.
According to Newton's 1st Law, an object in motion stays in 
a)
plain sight
b)
motion
c)
still
d)
motionless 
47.
If there were no friction, a moving object would keep moving forever.
a)
True
b)
False
48.
 Which term explains why a crash-test dummy lunges forward during a car crash?
a)
Intertia
b)
Gravity
c)
Velocity 
49.
What is the sum of all the forces acting on an object? 
a)
Friction
b)
Newton's 1st law
c)
Inertia
d)
Net Force
50.
If you travel to Mars, where gravity is 38% of Earth's gravity, what will happen to your mass and weight?
a)
Your mass and weight will both be greater than on Earth.
b)
Your mass and weight will both be less than on Earth.
c)
Your mass will be the same, but your weight will be less than on Earth.
d)
Your mass will be less than on Earth, but your weight will be the same.
51.
A ball thrown at the ground bounces back up. 
a)
Law of Inertia (1st Law)
b)
Law of Mass and Acceleration (2nd law)
c)
Law of Action Reaction (3rd Law)
52.
A soccer ball accelerates more than a bowling ball when thrown with the same force.
a)
1st Law
b)
2nd Law
c)
3rd Law 
53.
F=MA
An object of mass 10 kg is accelerated upward at 2 m/s2.  What force is required? 
a)
20 N
b)
2 N
c)
5 N
d)
0 N
54.
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?
a)
the cannonball
b)
the baseball
c)
The balls land at the same time.
d)
the ball with the larger volume
55.
Which of the following is the same as a Newton?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
56.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
57.

What is the formula for mass and weight?

a)

w = m/g

b)

w = m - g

c)

w = mg

d)

w = m + g

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