# Mr W's Online Physics Quiz 2

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Quizzes Created: 4 | Total Attempts: 1,891
Questions: 11 | Attempts: 522

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Another practice quiz on new and old information brought to you by Mr Wehlan to help you study and memorize information for your daily quizzes. This covers up to Quiz 4  Be sure to enter First and Last name when you log in. . .
NOTE: Any students having difficulty with science quizzes or anyone with a C average or below should be using this site on a DAILY basis for homework!  (See PowerSchool Online) Try the new Study Stack at https://www. Studystack. Com/menu-217471  HAVE FUN! Mr W.

• 1.

### Which unit measures/indicates acceleration?

• A.

M/s

• B.

M/s North

• C.

M/s^2 or m/s/s

• D.

Km/min

• E.

None of the above

C. M/s^2 or m/s/s
Explanation
The correct answer is m/s^2 or m/s/s. Acceleration is the rate at which an object changes its velocity. It is measured in meters per second squared (m/s^2) or meters per second per second (m/s/s). This unit indicates the change in velocity per unit of time. The other units listed, such as m/s and km/min, measure velocity and not acceleration. Therefore, the correct unit to measure or indicate acceleration is m/s^2 or m/s/s.

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• 2.

### The SI (metric) unit to measure force is the?

• A.

Kilogram

• B.

Meter

• C.

Newton

• D.

Second

C. Newton
Explanation
The SI unit to measure force is the Newton. The Newton is defined as the amount of force required to accelerate a one-kilogram mass by one meter per second squared. It is named after Sir Isaac Newton, who formulated the laws of motion. The Newton is widely used in physics and engineering to quantify forces and their effects.

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• 3.

### A graph with speed on the Y-axis and time on the X-axis is a graph showing?

• A.

Acceleration

• B.

Motion

• C.

Speed

• D.

Velocity

A. Acceleration
Explanation
A graph with speed on the Y-axis and time on the X-axis is a graph showing acceleration. Acceleration is the rate at which an object changes its velocity over time. In this graph, the slope of the line represents the change in speed over time, indicating the acceleration of the object.

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• 4.

### Any object or location used to determine your position, location, or motion is called a(n)?

• A.

Focus point

• B.

Reference point

• C.

Displacement object

• D.

Locator

B. Reference point
Explanation
A reference point is an object or location that is used to determine one's position, location, or motion. It serves as a fixed point of comparison, allowing us to understand our own movement or change in position relative to it. By using a reference point, we can establish a frame of reference and measure distances, displacements, or changes in position accurately. It helps in navigation, tracking, and understanding the movement of objects or individuals in relation to a known point.

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• 5.

### How quickly you change your velocity (your speed and/or direction) is called?

• A.

Relative velocity

• B.

Constant speed

• C.

Acceleration

• D.

Displacement

C. Acceleration
Explanation
Acceleration refers to how quickly an object changes its velocity, which includes both its speed and direction. It measures the rate of change of velocity over time. Therefore, acceleration is the correct answer to the question.

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• 6.

### How far you travel along a path is called?

• A.

Displacement

• B.

Position

• C.

Motion

• D.

Distance

D. Distance
Explanation
Distance refers to the total length covered along a path, regardless of direction. It is a scalar quantity that only considers the magnitude of the travel. Displacement, on the other hand, refers to the change in position from the starting point to the ending point, taking into account both magnitude and direction. Position refers to the specific location of an object at a given time. Motion refers to the act of moving or changing position. Therefore, distance is the correct answer as it specifically refers to how far one travels along a path.

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• 7.

### A graph showing distance on the Y-axis and time on the X-axis is a ______ graph.

• A.

Velocity

• B.

Displacement

• C.

Acceleration

• D.

Speed

D. Speed
Explanation
A graph showing distance on the Y-axis and time on the X-axis is a speed graph because speed is defined as the distance traveled per unit of time. By plotting distance against time, we can determine the speed at which an object is moving.

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• 8.

### Which unit below indicates velocity?

• A.

M/s^2 or m/s/s

• B.

M/s

• C.

Km/hr

• D.

M/s West

D. M/s West
Explanation
The unit "m/s" indicates velocity. In this case, the addition of "West" indicates the direction of the velocity, making it a vector quantity.

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• 9.

### How far you travel along a path is called?

• A.

Position

• B.

Displacement

• C.

Average acceleration

• D.

Distance

D. Distance
Explanation
Distance refers to the total length covered along a path, regardless of the direction. It is a scalar quantity and is measured in units such as meters or kilometers. In the context of the given question, distance represents the total amount of travel along a path, without considering any changes in direction or position.

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• 10.

### An approaching thunderstorm is moving in from the East, what else do you need to know to determine the storms velocity?

• A.

Displacement

• B.

Distance

• C.

Direction

• D.

Acceleration

• E.

Speed

E. Speed
Explanation
To determine the storm's velocity, you would need to know both its speed and direction. Speed refers to how fast the storm is moving, while direction indicates the path it is taking. By knowing both speed and direction, you can calculate the storm's velocity vector, which gives the magnitude and direction of its motion. Displacement, distance, and acceleration are not directly related to determining the storm's velocity.

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• 11.

### You ride you bike on Saturday. You travel 7 km the first hour, 5 km the second hour, and 6 km for the last hour. What is your average speed for the whole afternoon?Savg = total distance             total time

6 kph
6 km/hr
6kph
6km/hr
Explanation
The average speed for the whole afternoon can be calculated by dividing the total distance traveled by the total time taken. In this case, the total distance traveled is 7 km + 5 km + 6 km = 18 km, and the total time taken is 1 hour + 1 hour + 1 hour = 3 hours. Therefore, the average speed is 18 km / 3 hours = 6 km/hr or 6 kph.

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• Current Version
• Mar 18, 2023
Quiz Edited by
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• Feb 25, 2009
Quiz Created by
Swehlan

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