What must happen to an object in order to accelerate it?

Its frictional coefficient must be reduced.

Which is true about the relationship between an object's mass and its weight?

Weight is gravity's force on the object, which is determined by its mass.

The object's mass is caused by the weight of the object pushing downward.

An object's weight and its mass are the same, but they are measured differently.

An object's weight and its mass are independent of each other.

Jeff was riding in a car. Which change demonstrates the GREATEST effect of inertia?

The car changes into another lane.

The car runs out of gas and rolls to a stop.

This graph shows the velocity of a car. Which statement BEST explains how the car is moving?

Velocity is increasing, so the car is accelerating

Velocity is decreasing, so the car is accelerating

Velocity is increasing, so the car is not accelerating

Velocity is decreasing, so the car is not accelerating

Use the diagram to answer this question. Which correctly identifies the parts of a wave in this diagram?

A is the wavelength; B is the crest; C is the trough

A is the crest; B is the trough; C is the wavelength

A is the trough; B is the wavelength; C is the crest

A is the trough; B is the crest; C is the wavelength

When a rock is dropped into a large puddle, the energy of the waves is greatest at the center of the puddle. Which statement is correct?

the energy of the waves is greatest at the center of the puddle

the energy of the waves is greatest at the edge of the puddle

the energy of the waves is greatest between the center and edge of the puddle

the energy of the waves doesn't change as they move away from the center of the puddle.

The leaves on a tree appear to be green because the molecules of the leaves

reflect the light back unchanged.

Electromagnetic waves and mechanical waves are alike and different. What is one way in which these waves are similar?

Both types of waves have a frequency.

Both types of waves require a medium.

Both types of waves transmit matter.

Both types of waves have a pitch.

The speed of a sound wave depends MOSTLY on...

the medium through which the wave travels.

the angle at which it approaches the listener.

After the train passed, the pitch of the train whistle became lower. This change in sound would be represented by what change in the diagram?

The distance represented by "C" would increase.

The distance represented by "A" would increase.

The distance represented by "A" would decrease.

The distance represented by "C" would decrease.

Imagine a ringing bell set inside a sealed glass jar. Once all the air is removed and a vacuum is created, the ringing sound is no longer heard. Explain why this happens.

without air, the sound waves cannot travel to the ear

The glass prevents any sound from escaping

The lack of air in the jar causes the ringing to stop

the pressure of the outsider air causes the sound to remain within the jar

Which of these is one way that mechanical waves differ from electromagnetic waves?

Mechanical waves require a medium and electromagnetic waves do not.

Mechanical waves require energy and electromagnetic waves do not.

Electromagnetic waves require a medium and mechanical waves do not.

Mechanical waves transmit matter and electromagnetic waves transmit energy.

As an astronaut travels from Earth to a space station orbiting Earth, what happens to her mass and weight?

C) Her mass remains the same, but her weight decreases.

A) Her mass decreases, but her weight remains the same.

B) Her mass increases as her weight decreases.

D) Her mass decreases and her weight also decreases.

Which is true about friction and gravity?

B) Both cause things to speed up.

Which is a result of the effect of gravity?

C) Released objects always fall toward Earth's surface.

A) Rocket engines can force objects into space.

B) Air friction causes falling objects to slow down.

D) Airplanes are able to fly without falling to the ground.

How can the materials in the diagram be used to make a magnet?

D) touch the ends of the wire to the ends of the battery.

A) Replace the iron nail with a wood rod.

B) add more loops of wire to the iron nail.

C) Connect the ends of the wire to each other.

If you were to travel to the moon, your weight would be about one-sixth less than it is on earth. This is because the moon...

B) is much less massive than earth.

A) has a much smaller circumference than earth.

C) rotates much slower than earth.

D) has no water on its surface.

Physical Science GMAS Review part 2

Authored by Ebony McDowell

Science

8th Grade

NGSS covered

Used 37+ times

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46 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To pull up a bucket of water from a well, George pulled hard on a handle to wind up a rope. Which kind of energy was George applying to the handle?

chemical energy

frictional energy

potential energy

mechanical energy

Tags

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process by which heat energy gets to Earth from the Sun?

conduction

radiation

subduction

convection

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which situation is an example of increasing potential energy?

pulling a wagon uphill

cat jumping from a tree

attempting a bucket of water

a bicyclist stopping at a stop sign

Tags

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these has MOSTLY kinetic energy?

the pitcher

the ball

the batter

the catcher

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do microwaves cook food?

by using electromagnetic waves and the process of radiation

by using forced hot air currents through the process of convection

by using the movement of charged particles through the process of induction

by using direct contact of moving particles through the process of conduction

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bill and Mary wanted to have a snack after school. They heated some milk in a pot on the stove to make hot chocolate. They also popped some popcorn in the microwave oven. How did Bill and Mary transfer heat energy to make these snacks?

A) heating milk by radiation; popping popcorn by radiation

B) heating milk by radiation; popping popcorn by convection

C) heating milk by conduction; popping popcorn by radiation

D) heating milk by convection; popping popcorn by coonduction

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Gasoline, wood, water behind a dam, and a boulder on the edge of a cliff all represent some form of potential energy. What form of potential energy do gasoline and wood have in common?

heat

light

chemical

mechanical

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Physical Science GMAS Review part 2

To pull up a bucket of water from a well, George pulled hard on a handle to wind up a rope. Which kind of energy was George applying to the handle?

What is the process by which heat energy gets to Earth from the Sun?

Which situation is an example of increasing potential energy?

Which of these has MOSTLY kinetic energy?

How do microwaves cook food?

Bill and Mary wanted to have a snack after school. They heated some milk in a pot on the stove to make hot chocolate. They also popped some popcorn in the microwave oven. How did Bill and Mary transfer heat energy to make these snacks?

Gasoline, wood, water behind a dam, and a boulder on the edge of a cliff all represent some form of potential energy. What form of potential energy do gasoline and wood have in common?

On a cold, winter day, Sheena rubs her hands together. Stored chemical energy is transformed into mechanical energy. Due to the Law of Conservation of Energy some of the energy is also transformed into...

What form of energy is associated with the movement of charges, usually electrons?

________ energy is produced when a force causes a substance to vibrate, and the energy is transferred through the substance in a wave.

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