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Phy Sci Unit 10 Study Slides

Total questions: 73

Worksheet time: 1hrs 8mins

Name
Class
Date
1.

A group of students performed an investigation with toy cars. They applied a force on the toy cars and measured the time it took the cars to move through a 10-meter distance. The data from their investigation in shown.

What question were they most likely trying to answer?

a)

Does the mass of a car affect the distance the car travels?

b)

Does the distance the car travels affect the time?

c)

Does the force on a car affect the change in motion?

d)

Does the mass of a car affect the distance the car travels?

2.

The model shows forces acting on a box when it is sliding down the ramp.

What would most likely happen to the motion of the box if you poured oil on the ramp?

a)

It will slow the box because the force of friction will be increased.

b)

It will speed up the box because the force of friction will be increased.

c)

It will slow the box because the force of friction will be reduced.

d)

It will speed up the box because the force of friction will be reduced.

3.

A student did an investigation to see how changing the mass of an object would affect the distance it would take to stop. Shown is the data from his investigation.

How should he make the graph of his data?

a)

He should make a line graph with mass on the "X" axis and distance on the "Y" axis.

b)

He should make a line graph with mass on the "Y" axis and distance on the "X" axis.

c)

He should make a bar graph with mass on the "X" axis and distance on the "Y" axis.

d)

He should make a bar graph with mass on the "Y" axis and distance on the "X" axis.

4.

A group of students want to test the effect of balanced forces on the motion of objects with different masses. They conducted trails with 10-gram, 20-gram, and 30-gram blocks. They applied 100 Newtons of force to each side of the blocks as shown in each trial.

Which hypothesis will most likely be supported by the results of the investigation?

a)

When a balanced force is applied the block with the greatest mass will move fastest.

b)

When an unbalanced force is applied the block with the least mass will move fastest.

c)

When a balanced force is applied the speed of an object will not change.

d)

When an unbalanced force is applied the speed of an object will not change.

5.

A student recorded the distance than an object moved at 5 second intervals. The graph below shows the motion of an object.

Which of the following best describes the data in the graph?

a)

Time is the dependent variable which is graphed on the "Y" axis.

b)

Time the is dependent variable which is graphed on the "X" axis.

c)

Distance is the dependent variable which is graphed on the "Y" axis.

d)

Distance is the dependent variable which is graphed on the "X" axis.

6.
The unit for force is a called a: 
a)

Galileo

b)

Newton

c)

Aristotle

7.
The overall force acting on an object after all the forces are combined is called a 
a)
net force
b)
unbalanced force
c)
balanced force
8.
When the net force is zero what type of force is acting on the objects? 
a)
balanced force
b)
unbalanced force
9.
A force that opposes the motion of objects that touch as they move past each other. 
a)
vector
b)
gravity
c)
friction 
10.
A type of friction that acts on objects that are not moving. 
a)
static
b)
rolling
c)
sliding
11.
  A force that opposes the direction of motion of an object as it slides over a surface. 
a)
static
b)
rolling
c)
sliding
12.
  A type of friction that occurs when a round object rolls across a flat floor. 
a)
static
b)
rolling
c)
sliding
13.
A force that opposes motion of an object through a fluid is called: 
a)
static friction
b)
rolling friction
c)
fluid friction 
14.
A force that acts between any two masses is called: 
a)
friction
b)
vectors
c)
gravity
15.
The constant velocity of a falling object when the force of air resistance equals the force of gravity is called: 
a)
terminal velocity
b)
projectile motion
c)
sliding friction
16.
The curved path an object takes after it is given an initial forward velocity is called: 
a)
terminal velocity
b)
projectile motion
c)
sliding friction 
17.
If I kick a soccer ball across the field, what vocabulary word tells me why the ball would slow down in the grass?
a)
acceleration
b)
friction
c)
gravity
18.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
19.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
20.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
21.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
22.

An Orange falls off a tree and lands on the ground. What force caused the orange to fall?

a)

friction

b)

heat

c)

gravity

d)

wind

23.

Friction is a force that acts ...

a)

in the same direction as the motion

b)

opposite to the direction of the motion

c)

opposite to the applied forces

d)

the same direction as the applied force

24.
Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 
a)
feathers 
b)
iron
c)
same
d)
depends on their friction
25.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N 
b)
40N 
c)
10N 
d)
70N
26.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the net force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
27.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
28.

The tendency of an object to resist a change in its motion...

a)

acceleration

b)

inertia

c)

mass

d)

frame of reference

29.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by the two is the total force.
30.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
31.

A student wished to design an investigation to determine the effect of changing the mass of an object when an unbalanced force is applied the object.

What should she use as the independent variable in her investigation?

a)

Time

b)

Force

c)

Mass

d)

Speed

32.
A place or object used for comparison to determine if another object is in motion is called a
a)
comparison point
b)
reference point
c)
point of view
d)
motion detector
33.

An object is in motion if it changes position relative to

a)

a reference point

b)

speed

c)

the distance traveled

d)

constant speed

34.

Relative motion

a)

the motion of an object in comparison to other objects in a specific frame of reference

b)

the point of view used to measure the position and movement of objects

c)

how fast something moves

d)

the distance

35.

What is force?

a)

the PUSH or PULL on an object

b)

the motion an object creates

c)

going fast

d)

Yoda

36.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
37.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
38.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
39.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
40.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
41.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
42.

If forces are going in the same direction, you should

a)

add the forces

b)

subtract the forces

c)

multiply the forces

d)

divide the net force

43.

Unbalanced forces

a)

movement of electrons in motion

b)

no change in motion

c)

causes a change in motion

d)

push or pull on an object

44.

A contact force is from

a)

objects physically touching

b)

far apart objects

c)

not touching object

d)

always a pull

45.

A non-contact force is between

a)

two objects that aren't touching

b)

two objects that are touching

c)

the ground and wheels

d)

you and me

46.

The three examples pictured are of

a)

Non-contact Forces

b)

Contact Forces

47.

The force between the phone and the mount is a

a)

contact force

b)

non-contact force

48.

The force between the two people through the rope is

a)

Contact Pull

b)

Non-contact Pull

c)

Contact Push

d)

Non-contact Push

49.
1. Which of the following statements about speed and velocity is correct?
a)
Velocity only describes an object’s rate of motion.
b)
Speed describes how an object is changing its velocity.
c)
Speed and velocity both describe how an object is speeding up.
d)
Only velocity includes the direction an object is traveling.
50.
Avery likes to walk 30 feet in 10 seconds. What is her speed?
a)
3 feet/sec
b)
6 feet/sec
c)
10 feet/sec
d)
2 feet/sec
51.
65mi/hr South is an example of...
a)
Speed
b)
Velocity
c)
Acceleration
d)
Direction
52.

Find the velocity of a plane that traveled 3000 miles west in 5 hours.

a)

65 mph

b)

600 mph

c)

600 mph west

d)

600 mph

53.
Describe the speed of the object from 4-6 seconds using the distance vs. time graph.
a)
Increasing speed
b)
Decreasing speed
c)
Not moving
d)
Constant speed
54.

A stopped car begins moving and reaches a speed of 25m/s in 5 seconds. What is its acceleration?

a)

+25m/s2

b)

-0m/s2

c)

+5m/s2

d)

5m/s

55.

A helicopter flies west 200 miles in 2 hours. What is its velocity?

a)

99 mph

b)

100 mph south

c)

400 mph south

d)

297 mph south

56.
If you travel 7.5 km and walk for 1.5 h, what is your average speed?
a)
5 km/h
b)
11.25 km/h
c)
0.2 km/h
57.
You are riding your bike at 9 km/h. Ten minutes later, your speed is 6 km/h.
a)
Acceleration occurred because speed increased.
b)
Acceleration occurred because speed decreased.
c)
Acceleration occurred because you changed directions.
58.

What two things must you know to determine speed?

a)

distance and direction

b)

direction and time

c)

speed and direction

d)

time and distance

59.

What is your acceleration if you are riding your bike at 9 km/hr, and 10 minutes later your speed is 6 km/hr.

a)

0.3 km/hr

b)

30 km/hr

c)

0.3 km/hr/hr

d)

300 km/hr

60.

Which of the following is an example of potential energy?

a)

A glass jar sitting on a shelf

b)

A flag waving in the wind

c)

A ball rolling along the sidewalk

d)

A battery powering a radio

61.

At what speed would a car have to move in order to travel 20 kilometers in 2 hours.

a)

5 km/hr

b)

10 km/hr

c)

20 km/hr

d)

40 km/hr

62.

The location on the track where the train has the greatest potential energy is....

a)

1

b)

2

c)

3

d)

4

63.

Which of the following is an example of kinetic energy?

a)

A baseball moving from the pitcher to the catcher

b)

A rock sitting on top of a large hill

c)

A pendulum at the top of it's swing

d)

A new flashlight battery

64.

If an unbalanced force acts on an object at rest, the object will move in the direction of the force. Which of the following best models an object with unbalanced forces acting on it?

a)
b)
c)
d)
65.

A group of students want to test the effect of balanced forces on the motion of objects with different masses. They conducted trails with 10-gram, 20-gram, and 30-gram blocks. They applied 100 Newtons of force to each side of the blocks as shown in each trial.

Which hypothesis will most likely be supported by the results of the investigation?

a)

When a balanced force is applied the block with the greatest mass will move fastest.

b)

When an unbalanced force is applied the block with the least mass will move fastest.

c)

When a balanced force is applied the speed of an object will not change.

d)

When an unbalanced force is applied the speed of an object will not change.

66.
The unit for force is a called a: 
a)

Galileo

b)

Newton

c)

Aristotle

67.
The overall force acting on an object after all the forces are combined is called a 
a)

net force

b)

unbalanced force

c)

balanced force

68.
When the net force is zero what type of force is acting on the objects? 
a)

balanced force

b)

unbalanced force

69.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
70.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N 
b)
40N 
c)
10N 
d)
70N
71.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the net force?
a)

50N to the left.

b)

350N to the left.

c)

350N to the right.

d)

50N to the right.

72.

The tendency of an object to resist a change in its motion...

a)

acceleration

b)

inertia

c)

mass

d)

frame of reference

73.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by the two is the total force.

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