If the roller coaster car in the above problem were moving with twice the speed, then what would be its new kinetic energy?

Four times the original kinetic energy

Twice the original kinetic energy

Half the original kinetic energy

Same as the original kinetic energy

A superball is dropped vertically and bounces straight up and down. Which of the following statements is true? i. v= velocity; v=0 at top and at bottom ii. Notice that the ball is squished at the bottom.

The velocity is zero at both the top and the bottom.

The velocity is zero only at the top.

The velocity is zero only at the bottom.

Why does the ball not bounce as high each time? Where did the energy "go"?

The energy is absorbed by the ground.

The energy is lost to air resistance.

The energy is converted entirely into potential energy.

The energy is stored in the ball for the next bounce.

How do we know something is moving?

By observing a change in its position over time

Which of the following correctly differentiates between distance, displacement, scalar, and vector quantities?

Distance is a scalar quantity, displacement is a vector quantity, distance has only magnitude while displacement has both magnitude and direction.

Distance is a vector quantity, displacement is a scalar quantity, both have magnitude and direction.

Distance is a scalar quantity, displacement is a vector quantity, both have only magnitude.

Distance and displacement are both vector quantities, both have only magnitude.

How are speed and velocity related?

Speed is the magnitude of velocity.

Velocity is the magnitude of speed.

Speed and velocity are the same.

Speed is always greater than velocity.

How do we know what forces are acting on us?

By observing the effects on objects

By measuring the speed of objects

By calculating the mass of objects

By analyzing the color of objects

How do Newton’s laws of motion apply to our daily lives?

They explain the motion of objects we interact with.

They describe the chemical reactions in our body.

They govern the flow of electricity in circuits.

They determine the weather patterns.

Define Frame of reference or reference point.

It is essentially a perspective or viewpoint from which observations are made.

Frame of reference is a physical object used to measure time.

Reference point is a fixed location on the Earth's surface.

Frame of reference is a tool used to calculate speed.

Distance is a scalar quantity that represents the interval between two points in space, typically measured in units such as meters or kilometers.

Distance is a vector quantity that includes both magnitude and direction.

Distance is the measure of the amount of matter in an object.

Distance is the rate at which an object changes its position.

Displacement is a vector quantity that refers to the change in position of an object. It is defined as the shortest distance from the initial to the final position of the object, along with the direction of that straight line.

Displacement is the total distance traveled by an object, regardless of direction.

Displacement is a scalar quantity that measures the speed of an object.

Displacement is the amount of space an object occupies.

Scalar is a quantity that is fully described by a magnitude alone. It does not have a direction, unlike vectors which have both magnitude and direction.

Scalar is a quantity that has both magnitude and direction.

Scalar is a type of vector that only exists in two-dimensional space.

Scalar is a mathematical operation used to find the dot product of two vectors.

Vector is an object that has both a magnitude and a direction. It is often represented as an arrow in space, where the length of the arrow indicates the magnitude and the direction of the arrow indicates the direction of the vector.

Vector is a scalar quantity that only has magnitude and no direction.

Vector is a type of matrix used in linear algebra to solve equations.

Vector is a programming language used for statistical computing and graphics.

Magnitude is a measure of the size or quantity of something, often used in various scientific contexts to describe the intensity or strength of phenomena such as earthquakes, stars, or forces.

Magnitude is the color of an object as perceived by the human eye.

Magnitude is the speed at which an object is moving in a particular direction.

Magnitude is the temperature at which a substance changes from solid to liquid.

Speed is the distance traveled per unit of time.

Speed is the amount of force applied to an object.

Speed is the time taken to travel a certain distance.

Speed is the change in velocity over time.

Velocity is a vector quantity that refers to the rate at which an object changes its position. It is defined as the displacement of an object divided by the time taken to cover that displacement, and it has both magnitude and direction.

Velocity is a scalar quantity that measures the speed of an object without considering its direction.

Velocity is the force applied to an object to change its state of motion.

Velocity is the amount of space an object occupies in a given time.

Slope is a measure of the steepness or incline of a line. This represents the velocity.

Slope is the distance between two points on a plane.

Slope is the angle formed by two intersecting lines.

Slope is the midpoint of a line segment.

Mass is a measure of the amount of matter in an object, typically measured in kilograms or grams.

Mass is the force exerted by an object due to gravity.

Mass is the volume occupied by an object.

Mass is the energy contained within an object.

Weight is the force exerted by gravity on an object, typically measured in units such as pounds or kilograms.

Weight is the amount of matter in an object, measured in grams or kilograms.

Weight is the measure of the volume of an object, usually in liters or cubic meters.

Acceleration is the rate of change of velocity of an object with respect to time.

Acceleration is the distance covered by an object in a unit time.

Acceleration is the force applied to an object to keep it in motion.

Acceleration is the energy required to move an object from one place to another.

How do you calculate slope? What does the slope of a line tell us?

The slope is calculated as the change in y divided by the change in x, and it tells us the steepness and direction of a line, or velocity.

The slope is calculated as the change in x divided by the change in y, and it tells us the curvature of a line.

The slope is calculated as the sum of x and y coordinates, and it tells us the length of a line.

The slope is calculated as the product of x and y coordinates, and it tells us the area under a line.

Distance and time have what kind of relationship when calculating speed?

Inverse proportion- when one increases the other decreases.

Direct proportion – when one increases, so does the other.

Direct proportion- when one increases the other decreases.

Inverse proportion- when one increases so does the other.

What is the difference between distance and displacement?

Distance is a scalar quantity, while displacement is a vector quantity.

Distance is a vector quantity, while displacement is a scalar quantity.

Distance and displacement are both scalar quantities.

Distance and displacement are both vector quantities.

You are walking from your house to the park that is 30 meters in a straight line from your house. Suddenly, you realize you dropped your keys along the way, so you walk back 14 meters until you find them. i. What is the distance you’ve walked? ________________ ii. What is your displacement? ________________

i. The distance walked is 30 meters to the park and 14 meters back, totaling 44 meters. ii. The displacement is the straight line from the house to the park minus the distance walked back, which is 30 meters - 14 meters = 16 meters.

i. The distance walked is 30 meters to the park and 14 meters back, totaling 44 meters. ii. The displacement is the straight line from the house to the park, which is 30 meters.

i. The distance walked is 30 meters to the park and 14 meters back, totaling 44 meters. ii. The displacement is the total distance walked, which is 44 meters.

i. The distance walked is 30 meters to the park and 14 meters back, totaling 44 meters. ii. The displacement is the distance walked back, which is 14 meters.

A truck travels to and from a stone quarry that is located 2.5 km to the east. What is its distance? What is its displacement?

Distance: 5 km, Displacement: 0 km

Distance: 2.5 km, Displacement: 2.5 km

Distance: 5 km, Displacement: 5 km

Distance: 2.5 km, Displacement: 0 km

Two cars start at the same point and drive in a straight line for 5 km. At the end of the drive their distances are the same, but their displacements are different. How is this possible?

Both cars drove in opposite directions and returned to the starting point.

One car took a detour and returned to the starting point.

One car drove in a circle and returned to the starting point.

Both cars drove in the same direction and stopped at the same point.

If two equal forces act on an object in opposite directions, what is the net force? What is acceleration?

The net force is zero, and the acceleration is zero.

The net force is equal to the sum of the forces, and the acceleration is non-zero.

The net force is equal to one of the forces, and the acceleration is non-zero.

The net force is zero, but the acceleration is non-zero.

Why is your weight less on the Moon than on Earth, but your mass is the same?

Because the Moon has less gravity than Earth

Because the Moon has more gravity than Earth

Because your mass changes on the Moon

Because the Moon is closer to the Sun

Semester 1 Exam Study Guide - Unit 1 Energy

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Semester 1 Exam Study Guide - Unit 1 Energy

Quiz

•

Physics

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS3-1, MS-PS2-2, MS-PS3-4

+12

Standards-aligned

Jessica Lanzetta

Used 27+ times

FREE Resource

66 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define potential energy (various types of potential energy).

1. Energy stored in elastic materials as the result of their stretching or compressing. 2. Chemical Potential Energy: Energy stored in the bonds of chemical compounds, which can be released during a chemical reaction. 3. Electrical Potential Energy: Energy stored due to the position of charged particles in an electric field.

1. Kinetic Potential Energy: Energy stored in an object as it moves. 2. Thermal Potential Energy: Energy stored in an object due to its temperature. 3. Nuclear Potential Energy: Energy stored in the nucleus of an atom. 4. Magnetic Potential Energy: Energy stored in magnetic fields.

1. Thermal Potential Energy: Energy stored in an object due to its temperature. 2. Acoustic Potential Energy: Energy stored in sound waves. 3. Radiant Potential Energy: Energy stored in electromagnetic waves. 4. Mechanical Potential Energy: Energy stored in mechanical systems.

1. Rotational Potential Energy: Energy stored in rotating objects. 2. Translational Potential Energy: Energy stored in objects moving in a straight line. 3. Vibrational Potential Energy: Energy stored in vibrating objects. 4. Sound Potential Energy: Energy stored in sound waves.

Tags

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define kinetic energy.

Kinetic energy is the energy that an object possesses due to its motion.

Kinetic energy is the energy stored in an object due to its position.

Kinetic energy is the energy released during a chemical reaction.

Kinetic energy is the energy that an object possesses due to its temperature.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define the law of conservation of energy.

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. The total energy in a closed system remains constant.

The law of conservation of energy states that energy can be created and destroyed, depending on the system.

The law of conservation of energy states that energy is always increasing in a closed system.

The law of conservation of energy states that energy is only conserved in open systems.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A rock is resting on a spring before it is released, what type of energy does the rock have and why?

Kinetic energy, because it is moving.

Elastic energy, because it is at rest and has the potential to move.

Thermal energy, because it is generating heat.

Sound energy, because it is making noise.

Tags

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A rock high on a cliff suddenly begins to fall, then hits the ground. Which of the following best explains all the energy transfers?

Gravitational energy is converted to kinetic energy, then to internal/thermal energy upon impact.

Kinetic energy is converted to potential energy, then to sound energy upon impact.

Thermal energy is converted to potential energy, then to kinetic energy upon impact.

Sound energy is converted to kinetic energy, then to potential energy upon impact.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the marble had 6.9 J of (potential) energy at the top of the hill and 5.4 J of (kinetic) energy at the bottom of the hill, was energy conserved and why?

Yes, because the total energy remains the same.

No, because some energy was lost.

Yes, because potential energy converted to kinetic energy and dissipated energy due to air resistance.

No, because kinetic energy is less than potential energy.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the kinetic energy of a 100 kg roller coaster car that is moving with a speed of 20.0 m/s?

20,000 J

200,000 J

2,000,000 J

20,000,000 J

Tags

NGSS.MS-PS3-1

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Semester 1 Exam Study Guide - Unit 1 Energy

66 questions

Define potential energy (various types of potential energy).

Define kinetic energy.

Define the law of conservation of energy.

A rock is resting on a spring before it is released, what type of energy does the rock have and why?

A rock high on a cliff suddenly begins to fall, then hits the ground. Which of the following best explains all the energy transfers?

If the marble had 6.9 J of (potential) energy at the top of the hill and 5.4 J of (kinetic) energy at the bottom of the hill, was energy conserved and why?

What is the kinetic energy of a 100 kg roller coaster car that is moving with a speed of 20.0 m/s?

If the roller coaster car in the above problem were moving with twice the speed, then what would be its new kinetic energy?

Missy Diwater, the former platform diver for the Ringling Brother's Circus had a kinetic energy of 15,000 J just prior to hitting the bucket of water. If Missy's mass is 50 kg, then what is her speed?

An object has a kinetic energy of 14 J and a mass of 17 kg, how fast is the object moving?

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