wayground logo

Тегін басып шығаруға болатын жұмыс парақтары

Қаріп өлшемі

S
M
L
XL
Жұмыс парақтары

WCAS Science

Total сұрақ: 81

Worksheet time: 48mins

Аты
Сынып
Күн
1.

The process of changing energy from one form to another is...

a)

Transformation

b)

Transfer

c)

Transmission

d)

Transportation

2.

The law of conservation of energy states that energy can neither be destroyed nor created. According to this law which of these equations is correct?

a)

Energy in=energy out

b)

E=MC2

c)

KE=PE

d)

Energy in=energy out

3.

Name the five forms of Kinetic energy:

a)

Mechanical thermal

b)

radiant electrical

c)

sound

d)

all of them

4.

Name the four forms of potential energy:

a)

Mechanical Chemical nuclear sound

b)

Mechanical Chemical nuclear electrical

c)

Mechanical Chemical sound electrical

d)

none of these

5.

Name the form of energy that takes place with wind

a)

thermal

b)

radiant

c)

mechanical

d)

sound

6.

Name the form of energy that takes place with fire

a)

chemical

b)

sound

c)

radiant

d)

thermal

7.

Name the form of energy that takes place with a microwave

a)

radiant

b)

chemical

c)

sound

d)

mechanical

8.

Name the form of energy that takes place with talking

a)

sound

b)

nuclear

c)

radiant

d)

chemical

9.

Name the form of energy that takes place with lightning

a)

chemical

b)

electrical

c)

thermal

d)

nuclear

10.

Name the form of energy that takes place with with a bow and arrow

a)

thermal

b)

chemical

c)

mechanical

d)

sound

11.

Name the form of energy that takes place with fuel

a)

radiant

b)

sound

c)

chemical

d)

thermal

12.

Name the form of energy that takes place with fusion of atoms

a)

nuclear

b)

sound

c)

chemical

d)

radiant

13.

Select all the energy transformations that occur in an hair dryer

a)

Mechanical KE

b)

electrical

c)

sound

d)

thermal

14.

Select all the energy transformations that occur in an electric keyboard

a)

electrical

b)

sound

c)

Mechanical KE

d)

nuclear

15.

Select all the energy transformations that occur in during photosynthesis

a)

chemical

b)

radiant

c)

Nuclear

d)

thermal

16.

Select all the energy transformations that occur in an hydropower dam

a)

electrical

b)

Mechanical KE

c)

chemical

d)

Mechanical PE

17.

Select all the energy transformations that occur in an hot air ballon

a)

Chemical

b)

Mechanical KE

c)

sound

d)

Thermal

18.

Which runner won the race?

a)

Runner A

b)

Runner B

c)

Runner C

d)

shelton is a potato

19.
a)

Accelerating then decelerating

b)

Accelerating then traveling at constant speed

c)

Decelerating then traveling at constant speed

d)

Traveling at constant speed then decelerating

20.

During which segment did the car come to a complete stop?

a)

Segment A to B

b)

Segment B to C

c)

Segment C to D

d)

Segment D to E

21.

Which runner ran at a constant speed?

a)

Runner A

b)

Runner B

c)

Runner C

d)

Shelton is a potato

22.
a)

1625 m

b)

1500 m

c)

1125 m

d)

1000 m

23.

Which runner had a bad start to his race?

a)

Runner A

b)

Runner B

c)

Runner C

d)

Shelton is a potato

24.

Describe the motion of the object in the diagram.

a)

The object moved at a constant speed, then stopped, returned to the beginning and moved back in the original direction very fast at a constant speed.

b)

The object is accelerating at an increasing rate, and then moving at a constant velocity/speed.

25.

Estimate how many hours passed when the trip was at 100 km.

a)

About 10 to 15

b)

About 5 to 10

c)

About 18-23

d)

About 16-17

26.

During which segment did the car travel the fastest?

a)

Segment A to B

b)

Segment D to E

c)

Segment C to D

d)

Segment B to C

27.

During which segment did the car travel back towards its starting position?

a)

Segment A to B

b)

Segment B to C

c)

Segment C to D

d)

Segment D to E

28.

Describe the motion of the object in the diagram.

a)

The object is accelerating at an increasing rate.

b)

The object is moving at a constant velocity/speed.

c)

Connor likes laney smith

d)

Carson shelton likes izzy marcum

29.

Which runner accelerated the fastest at the start of the race?

a)

Runner A

b)

Runner B

c)

Runner C

d)

same.

30.

In this velocity vs. time graph, the person at point C:

a)

Not enough information to determine.

b)

has positive acceleration.

c)

has negative acceleration.

d)

has zero acceleration.

31.

A horizontal (flat) line on a velcoty vs. time graph shows _______ acceleration.

a)

positive

b)

changing

c)

zero

d)

negative

32.

3 m/s north in an example of a(n):

a)

Velocity

b)

Acceleration

c)

Time

d)

Speed

33.

What does the slope of a distance vs. time graph tell you?

a)

The total distance traveled

b)

The time it took for the object to travel

c)

The acceleration

d)

The speed of the object

34.

Which time interval has the greatest speed?

a)

0 – 1 s

b)

1 – 2 s

c)

3 – 4 s

d)

4 – 6 s

35.

What does the slope of this graph tell you?

a)

distance

b)

speed

c)

time

d)

acceleration

36.

When a car traveling at 30 m/s hits the gas pedal, it speeds up to 65 m/s in 3.5 sec. What is the car’s

acceleration during that time?

a)

20 m/s2

b)

5 m/s2

c)

10 m/s2

d)

15 m/s2

37.

Motion is a change in:

a)

position

b)

velocity

c)

speed

d)

time

38.

A group of bike riders took a 4 hour trip. During the first 3 hours, they traveled a total of 50 km, but during

the last hour they traveled only 10 km. What was the group’s average speed for the entire trip?

a)

60 km/hr

b)

40 km/hr

c)

30 km/hr

d)

15 km/hr

39.

In this velocity vs. time graph, the person at point B:

a)

not enough information to determine.

b)

has positive acceleration

c)

has zero acceleration

d)

has negative acceleration.

40.

An indicator that orients you when describing motion is called the:

a)

speed

b)

point of motion

c)

reference point

d)

time

41.

What is true about a car with constant velocity?

a)

it has a positive acceleration

b)

it has a negative acceleration

c)

it has a changing direction

d)

it has zero acceleration

42.

How long will it take an object traveling at 25 m/s to reach a distance of 125 meters?

a)

0.2 min

b)

5 s

c)

5 m

d)

0.2 s

43.

What is the average speed of the bicyclist’s ride?

a)

45 m/s

b)

 45 mi/hr

c)

7.5 m/s

d)

7.5 mi/hr

44.

Acceleration is a rate of change of _____.

a)

position

b)

speed

c)

time

d)

velocity

45.

If you ride your bike down a straight road for 500 m then turn around and ride back to your starting point, your distance is____ your displacement.

a)

Can't determine

b)

Greater than

c)

Equal to

d)

Less than

46.

The horses on a carousel or merry-go-round are accelerating because ____.

a)

the speed of the horses is constantly increasing

b)

the speed of the horses is constantly decreasing

c)

the direction of the horses’ motion is constantly changing

d)

the travel time is different for every ride

47.

A high-speed train travels with an average speed of 227 km/hr. The train travels for 2 hrs. How far does the train travel?

a)

454 km

b)

0.0088 km

c)

113.5 km

d)

225 km

48.

The speed you read on a speedometer is___.

a)

Velocity

b)

Instantaneous speed

c)

Average speed

d)

Constant speed

49.

The graph below represents the change in velocity of four cars over a period of 10 hours. Which line represents the car with the greatest acceleration?

a)

Car A

b)

Car B

c)

Car C

d)

Car D

50.

Find the acceleration of a car that goes from 32 m/s to 96 m/s in 8.0 s.

a)

-8.0 m/s2

b)

8.0 m/s2

c)

12 m/s2

d)

4.0 m/s2

51.

At what point is the rate of change of velocity the greatest?

a)

A

b)

B

c)

C

d)

Not enough information to determine

52.

Which statement about the movement of an object with zero acceleration could be true?

a)

the object is changing direction

b)

the object is slowing down

c)

the object is speeding up

d)

the object is moving at a constant speed

53.

In this velocity vs. time graph, the person at point A:

a)

has zero acceleration.

b)

Not enough information to determine.

c)

has positive acceleration

d)

has negative acceleration.

54.

What variable is on the Y-axis on this graph?

a)

motion

b)

velocity

c)

acceleration

d)

time

55.

A cross-country runner runs 10 km in 40 minutes. What is his average speed?

a)

30 km/min

b)

4 km/min

c)

400 km/min

d)

0.25 km/min

56.

A car travels a distance of 98 meters in 10 seconds. What is the average speed of the car?

a)

4.9 m/s

b)

9.8 m/s

c)

49 m/s

d)

98 m/s

57.

A skateboarder is traveling 12 m/s down a hill. The skateboarder crashed and slid to a stop in 2.0 seconds.

What was the rider’s acceleration?

a)

6 m/s2

b)

-6 m/s2

c)

0.17 m/s2

d)

-0.17 m/s2

58.

What is the instantaneous speed at 5 s?

a)

30 m/s

b)

30 mi/hr

c)

6 m/s

d)

5 mi/hr

59.

A car moves around a wide turn going 45 mi/hr the whole time. The car has a constant:

a)

Velocity

b)

direction

c)

acceleration

d)

speed

60.

Which of the laws of motion states, "To every action there is an equal but opposite reaction?"

a)

Newton's 1st Law

b)

Law of Conservation of Momentum

c)

Newton's 2nd Law

d)

Newton's 3rd Law

61.

Consider a watermelon that starts from rest and drops straight down from a tall building. Air resistance can be ignored. Which statement about the watermelon's motion is FALSE?

a)

The watermelon has a positive acceleration

b)

The watermelon falls at a constant velocity

c)

The watermelon speeds up as it falls

d)

The watermelon's acceleration due to gravity is 9.8 m/s2

62.

A person is on a paddleboard. The person exerts a force on the water with the paddle, causing the water to move. The paddleboard also moves, but in the opposite direction. Which statement best explains why this happens?

a)

Newton's second law of motion

b)

inertia

c)

action and reaction forces

d)

Law of Conservation of Momentum

63.

Momentum describes

a)

How much velocity changes in a given amount of time

b)

The tendency of an object to resist a change in motion

c)

The balanced forces on a falling object with a constant speed

d)

How much force is needed to change an object's motion

64.

Which of the following factors does NOT affect air resistance?

a)

Speed

b)

spin

c)

shape

d)

size

65.

If a bicyclist has a mass of 70 kg and a velocity of 25 m/s, what is the momentum of the bicyclist? Use the formula: p=mv.

a)

1,750 kg*m/s

b)

1200 kg*m/s

c)

680 kg*m/s

d)

2100 kg*m/s

66.

A 98 kg man is accelerating forward at a rate of 1.2 m/s2. What is the unbalanced force necessary to produce this movement?

a)

117.6 N

b)

102.2 N

c)

139 N

d)

88.4 N

67.

Carl and Juan are playing catch. Carl throws a fastball to Juan and it hurts Juan's hand. Why is this the case?

a)

Greater the mass, the less the force

b)

Greater the mass, greater the acceleration

c)

Greater the acceleration, greater the force

d)

Greater the acceleration, the less the force

68.

A runner has a speed of 25 m/s. They see the finish line and speed up to 30 m/s. This happens in 5 seconds. IF the runner has a mass of 75 kg, with what force did the runner cross the finish line?

a)

75 N

b)

85 N

c)

65 N

d)

55 N

69.

Which of the following items has the most inertia?

a)

a water bottle

b)

your textbook

c)

a pencil

d)

the teacher

70.

A 700 kg car is driving with an acceleration of 5 m/s2down the interstate. What is the force required to accelerate the car?

a)

14 N

b)

0.071 N

c)

3,500 N

d)

650 N

71.

What is the weight (in Newtons) of a person with a mass of 95 kg?

a)

104.8 N

b)

931 N

c)

95 N

d)

9.7 N

72.

An object has 16 N of force being applied to the right, 16 N of force being applied downward. What is the net force on the object?

a)

4 N downward

b)

32 N

c)

36 N

d)

16 N to the left

73.

What is the mass of an object that has an acceleration of 2.63 m/s2 when an unbalanced force of 112 N is applied to it? Use the formula M=F/a

a)

42.6 kg

b)

43 kg

c)

41.2 kg

d)

40.7 kg

74.

An object will move at a constant velocity unless an unbalanced force acts upon it.

a)

Newton's 1st law

b)

Gravity

c)

Newton's 2nd law

d)

Newton's 3rd law

75.

Push or pull one body exerts on another.

a)

Weight

b)

Momentum

c)

Inertia

d)

Force

76.

The highest velocity a falling object will reach.

a)

Force

b)

Inertia

c)

Terminal velocity

d)

net force

77.

Tendency of an object to resist changes in motion.

a)

inertia

b)

weight

c)

gravity

d)

net force

78.

The attraction any two objects have on one another.

a)

gravity

b)

force

c)

Newton's 1st law

d)

net force

79.

To every action, there is an equal and opposite reaction.

a)

Newton's 1st law

b)

Newton's 2nd law

c)

Momentum

d)

Newton's 3rd law

80.

A net force acting on an object causes the object to accelerate in the direction of the net force.

a)

Newton's 2nd law

b)

Newton's 3rd law

c)

Newton's 1st law

d)

momentum

81.

8. Related to the amount of force needed to change an object’s motion.

a)

momentum

b)

force

c)

terminal velocity

d)

gravity