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Physical Science 1st Semester Review

Total questions: 73

Worksheet time: 1hrs 22mins

Name
Class
Date
1.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
2.
A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
3.
Total distance divided by total time is
a)
average speed
b)
constant speed
c)
instantaneous speed
d)
acceleration
4.
Velocity is both ____ and _____. 
a)
speed , direction 
b)
direction, mass
c)
volume, density 
d)
direction, magnitude 
5.
Which of the following represents a velocity?
a)
40 m
b)
40 m north
c)
40 m/s
d)
40 m/s north
6.
When you look at the speedometer of your car, it tells you your....
a)
Average speed
b)
Instantaneous speed
7.
What is the speed of a cheetah that travels 112.0 m in 4.0 s?
a)
0.0357 m/s
b)
28 m/s
c)
0.036 m/s
d)
28.0 m/s
8.
Two horses are running in a field.  The gray horse runs 12 m/s north.  The black horse runs 12 m/s east.  
Which is true about their motions?
a)
Equal speeds.
b)
Equal velocities.
c)
Equal distances.
d)
Equal displacements.
9.
How do you calculate velocity?
a)
Distance divided by time.
b)
Displacement divided by time.
c)
Speed multiplied by time.
d)
Displacement divided by velocity.
10.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
11.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
12.
Determine the momentum of 1000-kg car moving southward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s south
d)
10000 kg * m/s south
13.
A 0.250 kg cart moving at 0.400 m/s has how much momentum?
a)
0.1 kg-m/s
b)
1 kg-m/s
c)
10 kg-m/s
d)
100 kg-m/s
14.

The rate that a car's velocity changes is its

a)

speed

b)

force

c)

gravity

d)

acceleration

15.
A negative acceleration means that your object is _____. 
a)
not accelerating
b)
not moving
c)
speeding up 
d)
slowing down 
16.

A roller coaster accelerates from an initial speed of 6.0 m/s to a final speed 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

17.
 Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?
a)
800
b)
400
c)
0
d)
200
18.
David walks 3 km north, and then turns east and walks 4 km. What is the distance?
a)
7 km
b)
3 km
c)
4 km
d)
1 km
19.
Bill runs 400 meters to Andy's house, turns around, and runs 400 meters back home.  What is Bill's distance?
a)
0 meters
b)
400 meters
c)
800 meters
d)
1600 meters
20.
Bill runs 400 meters to Andy's house, turns around, and runs 400 meters back home.  What is Bill's displacement?
a)
0 meters
b)
400 meters
c)
800 meters
d)
1600 meters
21.
A person walks 50 meters directly north, stops, and then travels 32 meters directly south.  What is their displacement?
a)
82 meters
b)
18 meters
c)
28 meters
22.
A car moves a distance of 1000 m with an average speed of 28 m/s.   Calculate the time.
a)
36 seconds
b)
28,000 seconds
c)
28 seconds
d)
972 seconds
23.
A cheetah runs with an average speed of 32 m/s for 30 seconds.  How far did the cheetah run?
a)
960 m
b)
1.07 m
c)
0.94 m
d)
62 m
24.

Which of the following are steps in the scientific method? Select all that apply.

a)

Hypothesis

b)

Draw conclusions

c)

experiment

d)

measure water

e)

analyze data

25.

What are the 3 main categories of science? Select all that apply (3)

a)

Physical Science

b)

Ornothology

c)

Earth Science

d)

Life Science

26.

John has been wondering for weeks if turtles that eat lettuce would walk faster than those that eat carrots. So John begins by keeping 10 turtles in the same type of environment, but varies the types of food they get; 5 will get lettuce and 5 will get carrots. The food is known as the_________.

a)

independent variable

b)

dependent variable

c)

bias

d)

hypothesis

27.

John has been wondering for weeks if turtles that eat lettuce would walk faster than those that eat carrots. So John begins by keeping 10 turtles in the same type of environment, but varies the types of food they get; 5 will get lettuce and 5 will get carrots. The speed of the turtles is known as the______________________.

a)

bias

b)

hypothesis

c)

independent variable

d)

dependent variable

28.

Sammie is working to find out if wool sweaters absorb more heat than cotton. He begins to formulate an experiment. He makes a claim that if wool and cotton are placed under the same amount of light for the same amount of time then wool will absorb more heat. This statement is known as his______________________.

a)

hypothesis

b)

bias

c)

variable

d)

control

29.

Rachel loves Tucans. She is studying birds in the wild. She is trying to decide which bird of paradise lives the longest when left completely in the wild. Because she loves Tucans so much, Rachel could have a _______ in this experiment.

a)

control

b)

hypothesis

c)

bias

d)

variable

30.

What is an element in an experiment that is used to compare results to?

a)

bias

b)

hypothesis

c)

control

d)

variable

31.

23kg=_______

a)

.23g

b)

230g

c)

23000g

d)

.0023g

32.

200mg=______

a)

.2g

b)

200g

c)

2000

d)

2g

33.

95mm=______

a)

950cm

b)

9.5cm

c)

95000cm

d)

.95 cm

34.

250mL=__________

a)

25000L

b)

2.5L

c)

2500L

d)

.250L

35.

Length X Width X Height is the formula for_____

a)

density

b)

mass

c)

area

d)

volume

36.

Which of the following is the formula for density

a)

mass/volume

b)

volume/mass

c)

gram/mass

d)

volume/density

37.

What type of graph is this?

a)

Bar

b)

Line

c)

Pie

38.

What type of graph is this?

a)

Bar

b)

Pie

c)

Line

39.

What type of graph is this?

a)

Bar

b)

Line

c)

Pie

40.

In April, who had the lowest sales performance?

a)

Bob

b)

Rob

c)

Martha

41.

Ethics help scientists establish standards that they agree to follow when they collect, analyze and report data.

a)

True

b)

False

42.

Brittany is trying to decide the density of a box of crayons for her art project. She weighs the box on a scale and gets a mass of 3.5g. She then calculates the volume by measuring the length and width and height of the box. The length is 5cm, the width is 3cm and the height is 2cm. What is the density of the box of crayons Brittany is using?

a)

.114g/cm

b)

.116g/cm

c)

123g/cm

d)

550 g/cm

43.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction 
d)
The law of universal gravitation
44.

The formula ? = mass x acceleration or ? = m x a is used to find

a)

Force

b)

Velocity

c)

Momentum

d)

Gravity

45.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
46.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
47.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
48.

Newton's third law states that any action will have an _______ and ______ reaction

a)

Equal and similar

b)

Equal and opposite

c)

Equal and different

d)

Greater and opposite

49.

This equation goes with which law?

a)

Newton's first law of motion

b)

Newton's second law of motion

c)

Newton's third law of motion

50.

You push against a wall and the wall is pushing back on you.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

51.

You are carrying a lunch tray when you bump into the edge of a table. Although the tray did not tip, your milk falls off the front of the tray.

a)

Newton's 1st Law of Motion

b)

Newton's 2nd Law of Motion

c)

Newton's 3rd Law of Motion

52.
Why is it harder to push a van filled with bowling balls than it is to push a van with basketballs?
a)
The mass of the car is greater than the mass of the basketballs
b)
The mass of the bowling balls is greater than the mass of the basketballs
c)
The van with the basketballs is bigger than the van with the bowling balls
d)
It should be equally as hard to push the two vans
53.

Match the correct example with the law it matches with

a)

When an object is at rest it will stay at rest until a force acts upon it.

1.

Newton's 1st law

b)

A crate getting pushed.

2.

Newton's 2nd law

c)

Every action has an equal and opposite reaction.

3.

Newton's 3rd law

54.
A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
55.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
56.
A 20 kg bike accelerates at 10 m/s2.  What was the force?
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
57.

A toy car with a mass of 1 kg is pushed by a child with a force of 10N.

What is the acceleration of the car as a result of this push?

a)

10 m/s2

b)

1 m/s2

c)

10 m/s

58.

An F-16 fighter jet with a mass of 4000 Kg accelerates at 75 m/s2

What force is required from the jet’s engines to achieve this acceleration?

a)

30,000 N

b)

30 N

c)

300,000 N

59.

A 50 kg boy on a skateboard experiences a 75 N force as shown.

What is the acceleration of this boy?

a)

1.50 m/s2

b)

0.67 m/s2

c)

25.00 m/s2

60.

When mass is 10 kg, acceleration is 2 m/s2 what is force?
F = ma

a)
5 N
b)
20 N
c)
8 N
61.

A 50-kg crate is pushed with a horizontal acceleration of 20 m/s2. What net force is acting on the crate?

a)

2.5 N

b)

0.4 N

c)

1000 N

62.
What is a force?
a)
the PUSH or PULL on an object 
b)
The MOTION an object creates
c)
The objects HITTING one another
d)
Going REALLY FAST
63.

What is the net force being applied to the couch?

a)

5N RIght

b)

5 N Up

c)

45 N Right

d)

25 N Right

64.
What is the FORCE? 
a)
5 N
b)
10 N
c)
400 N
d)
0 N
65.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
66.
What is the net force?
a)
5 N
b)
45 N to the left
c)
5 N to the right
d)
45 N to the right
67.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
68.
Calculate the net force shown in the  diagram?
a)
41 N
b)
25 N
c)
16 N
d)
9 N
69.
What is the net force?
a)
65 N left
b)
65 N right
c)
35 N left
d)
35 N right
70.

Which direction will the net force be?

a)

Right

b)

Left

c)

Up

d)

Down

71.

If both people are exerting a force of 20 N, what is the net force?

a)

20 N

b)

40 N

c)

400 N

d)

0 N

72.

If both people are exerting a force of 30 N, what is the net force?

a)

30 N

b)

60 N

c)

300 N

d)

0 N

73.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)

broken

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