What is the formula for mechanical advantage (MA) using input and output distance?

MA = Resistance force (Fr) / Effort force (Fe)

MA = Input distance / Output distance

MA = Work output / Work input x 100%

MA = Output distance (height) / Input distance (slope)

Which type of energy transformation occurs in a windmill?

Converts the energy of the wind into mechanical energy in the movement of the turbine blades, which is then converted to electrical energy

Converts the chemical energy of the wind into mechanical energy

Converts the mechanical energy of the wind into chemical energy

Transfers light energy from the wind into electrical energy

Which of the following is an example of convection?

Burning your hand by touching a hot pan.

The hood of a car getting hot on a summer day.

A spoon getting warm when stirred in a hot soup.

What is radiation in terms of thermal energy transfer?

Heat transfer through open space (vacuum)

Heat transfer through direct contact

Heat transfer from a colder material to a warmer material

What does ΔT represent in the formula for calculating heat?

Final temperature minus initial temperature

Temperature under standard conditions

Initial temperature minus final temperature

What energy transformation occurs in a burning match?

A) Chemical to thermal and light energy

B) Mechanical to electrical energy

C) Nuclear to electrical energy

What energy transformation happens when you listen to a radio?

B) Thermal to mechanical energy

C) Chemical to electrical energy

D) Mechanical to thermal energy

Which type of energy transformation occurs while walking?

A) Chemical to mechanical energy

C) Electrical to thermal energy

D) Nuclear to electrical energy

How can you increase the amount of kinetic energy in a small ball of clay you are throwing to a friend?

D) Keep the ball of clay stationary

How can you increase the amount of potential energy in a book sitting on a bookshelf?

C) Move the book to a higher shelf

A) Move the book to a lower shelf

How is energy transferred during convection?

B) Through the movement of fluids or gases

A) Through electromagnetic waves

Does convection occur in solids? Why or why not?

B) No, because particles in solids are tightly packed and cannot move freely

A) Yes, because particles in solids can move freely

C) Yes, because solids can conduct heat

D) No, because convection requires a medium to travel through

Explain how kinetic energy and potential energy vary as a girl swings on a playground swing-set.

B) Kinetic energy is highest at the bottom; potential energy is highest at the top.

A) Kinetic energy is highest at the top; potential energy is highest at the bottom.

C) Both kinetic and potential energy are highest at the top.

D) Both kinetic and potential energy are highest at the bottom.

Based on the diagram, which swimmer has the greatest speed?

Cannot be determined from the diagram

Inertia can best be described as...

the tendency of any object to resist change and keep doing whatever it's doing.

the force which keeps moving objects moving at stationary objects at rest.

the willingness of an object to eventually lose its motion.

the force which causes all objects to stop.

Why does a book remain motionless before the force is applied, according to Newton's first law of motion?

Because it is at rest and will stay at rest unless acted upon by an unbalanced force.

Because it is waiting for an external force to act on it.

Because it is permanently fixed to the surface.

Under what conditions would the book remain in motion at a constant speed?

When no net force is acting on it.

When the force applied is greater than the frictional force.

When it is continuously pushed with varying force.

Why does a package on the seat of a bus slide backward when the bus accelerates quickly from rest?

Because the package tends to remain at rest while the bus moves forward.

Because the package is moving at a constant speed.

Because the package has its own source of propulsion.

Because the package is experiencing a backward force.

How does a headrest reduce whiplash?

By limiting the backward motion of the head during a rear-end collision.

By providing a soft cushion for the head.

By moving forward to support the head.

By alerting the driver to stop the car smoothly.

What is required for mechanical waves to travel?

A) A medium (solid, liquid, or gas)

Which of the following is NOT a characteristic of electromagnetic waves?

B) They require a medium to travel.

A) They can travel through space.

C) They have varying wavelengths and frequencies.

D) They can have long wavelengths with low frequencies.

Physical Science EOCT Practice 1

9th Grade

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83 Qs

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Physical Science EOCT Practice 1

Quiz

•

Science

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS4-1, MS-PS4-2, MS-PS2-2

+18

Standards-aligned

Juanita Walden

Used 1+ times

FREE Resource

83 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for calculating speed or velocity?

speed = distance + time

speed = distance/time

speed = time/distance

speed = distance x time

Tags

NGSS.MS-PS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is acceleration?

The decrease of velocity over a period of time

The increase of velocity over a period of time

The distance covered over a period of time

The time it takes for an object to stop

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to Newton's first law of motion, what will happen to an object at rest or in motion in the absence of an unbalanced force?

It will change direction

It will speed up

It will remain at rest or in motion in the same direction and speed

It will slow down gradually

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the acceleration due to gravity on Earth?

19.6 m/s²

9.8 m/s²

8.9 m/s²

6.7 m/s²

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between mass and weight?

Mass is a measure of how much space an object occupies, while weight is how much matter it contains.

Mass is a measure of how much matter an object contains, while weight is the force of gravity on that object.

Mass is the force of gravity on an object, while weight is how much matter it contains.

Mass and weight are the same thing.

Tags

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the weight of an object with a mass of 63.5 kg on the Moon?

623 N

103 N

1552 N

374.8 N

Tags

NGSS.MS-ESS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to Newton's third law of motion, what is always true about forces?

Forces always cancel each other out.

Forces always cause acceleration.

Forces are always unbalanced.

Forces are found in pairs.

Tags

NGSS.MS-PS2-1

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Physical Science EOCT Practice 1

83 questions

What is the formula for calculating speed or velocity?

What is acceleration?

According to Newton's first law of motion, what will happen to an object at rest or in motion in the absence of an unbalanced force?

What is the acceleration due to gravity on Earth?

What is the difference between mass and weight?

What is the weight of an object with a mass of 63.5 kg on the Moon?

According to Newton's third law of motion, what is always true about forces?

What is the formula for mechanical advantage (MA) using input and output distance?

Which of the following is not one of the six simple machines?

What is the mechanical advantage (MA) of the inclined plane shown in the image?

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