Chapter 11: Motion and Speed

Question 1

Motion is a change in ______ over time.

Answer 1

position

Question 2

A reference point is a place or object used to determine if something is in ______.

Answer 2

motion

Question 3

Distance is how much ______ an object has covered.

Answer 3

ground

Question 4

Displacement includes both ______ and direction.

Answer 4

magnitude

Question 5

Speed is calculated as ______ divided by time.

Answer 5

distance

Question 6

A flat line on a distance vs. time graph means the object is ______.

Answer 6

not moving

Question 7

The slope of a distance vs. time graph represents ______.

Answer 7

speed

Question 8

A steeper slope on a graph means a ______ speed.

Answer 8

faster

Question 9

If distance increases steadily over time, the object is moving at ______ speed.

Answer 9

constant

Question 10

Distance is a ______ quantity; displacement is a vector quantity.

Answer 10

scalar

Question 11

An object returning to its starting point has a displacement of ______.

Answer 11

zero

Question 12

Speed that changes over time is known as ______ speed.

Answer 12

variable

Question 13

A car’s speedometer shows its ______ speed.

Answer 13

instantaneous

Question 14

A line that curves upward on a graph shows that the object is ______.

Answer 14

speeding up

Question 15

The x-axis on a distance vs. time graph usually represents ______.

Answer 15

time

Question 16

The y-axis on a distance vs. time graph usually represents ______.

Answer 16

distance

Question 17

When an object is not moving, its speed is ______.

Answer 17

zero

Question 18

If a person walks 5 km north, their displacement is ______ km north.

Answer 18

5

Question 19

Instantaneous speed is the speed at a ______ moment.

Answer 19

given

Question 20

Average speed is calculated using total ______ and total time.

Answer 20

distance

Question 21

If the slope of a graph decreases, the object is ______ down.

Answer 21

slowing

Question 22

Running 100 meters in 10 seconds means a speed of ______ m/s.

Answer 22

10

Question 23

When the slope of the line increases over time, speed is ______.

Answer 23

increasing

Question 24

A moving object’s position changes relative to a ______ point.

Answer 24

reference

Question 25

GPS devices can measure your ______ and track your movement.

Answer 25

speed

Question 26

1. What does a flat line on a distance-time graph represent? A) Constant speed B) Speeding up C) At rest D) Slowing down

Answer 26

C. At rest – A flat line shows no change in distance over time.

Question 27

2. Speed is calculated by dividing: A) Time by distance B) Distance by time C) Displacement by time D) Distance by displacement

Answer 27

B. Distance by time – This is the formula for speed.

Question 28

3. Which of the following is a scalar quantity? A) Displacement B) Force C) Distance D) Velocity

Answer 28

C. Distance – Scalar quantities do not include direction.

Question 29

4. What does a steeper slope on a distance-time graph indicate? A) Slower speed B) Constant speed C) Faster speed D) No motion

Answer 29

C. Faster speed – A steeper slope means a greater rate of change.

Question 30

5. A curved line on a distance-time graph most likely shows: A) Constant speed B) Changing speed C) No motion D) Returning motion

Answer 30

B. Changing speed – Curves represent acceleration or deceleration.

Question 31

6. What is the unit for speed in the metric system? A) m/h B) km/s C) m/s D) s/m

Answer 31

C. m/s – The standard metric unit for speed.

Question 32

7. A person walks 3 km east and then 3 km west. What is the displacement? A) 6 km B) 0 km C) 3 km D) 1.5 km

Answer 32

B. 0 km – The person ends up where they started.

Question 33

8. Which tool can be used to measure instantaneous speed? A) Stopwatch B) Thermometer C) Speedometer D) Barometer

Answer 33

C. Speedometer – It shows the speed at any given moment.

Question 34

9. If a line on a graph is horizontal, the object is: A) Moving fast B) Slowing down C) Not moving D) Accelerating

Answer 34

C. Not moving – No change in position over time.

Question 35

10. Which axis represents time on a distance-time graph? A) Diagonal axis B) Vertical axis C) Horizontal axis D) None

Answer 35

C. Horizontal axis – Time is plotted on the x-axis.

Question 36

11. What do we call the location an object starts from? A) Motion point B) Starting slope C) Reference point D) Vector point

Answer 36

C. Reference point – It’s used to detect motion.

Question 37

12. Which of the following shows velocity? A) 50 m B) 30 m/s C) 20 m/s east D) 100 m

Answer 37

C. 20 m/s east – Velocity includes speed and direction.

Question 38

13. When an object moves at a constant speed, the distance-time graph line is: A) Curved B) Flat C) Straight D) Zig-zag

Answer 38

C. Straight – Constant speed results in a straight line.

Question 39

14. Displacement differs from distance because it includes: A) Time B) Speed C) Direction D) Force

Answer 39

C. Direction – Displacement is a vector; distance is not.

Question 40

15. An object moving back to its starting point has what displacement? A) Equal to distance B) Zero C) Half the distance D) Negative

Answer 40

B. Zero – Returned to start, so net change is zero.

Question 41

16. In science, speed is often measured in: A) meters per second B) kilometers C) hours per minute D) seconds per hour

Answer 41

A. meters per second – m/s is the correct unit.

Question 42

17. The faster the object moves, the ______ the slope on the graph. A) Steeper B) Flatter C) Shorter D) Lower

Answer 42

A. Steeper – Faster speeds show a greater slope.

Question 43

18. What kind of speed does a car’s cruise control maintain? A) Instantaneous B) Variable C) Constant D) Average

Answer 43

C. Constant – Cruise control keeps speed the same.

Question 44

19. Which of the following is NOT a vector quantity? A) Velocity B) Force C) Speed D) Displacement

Answer 44

C. Speed – Speed does not include direction.

Question 45

20. What does the slope of a distance-time graph tell you? A) Distance traveled B) Speed C) Time taken D) Direction

Answer 45

B. Speed – The slope tells how fast the object is moving.

Question 46

21. If distance stays the same but time increases, speed: A) Increases B) Stays the same C) Decreases D) Doubles

Answer 46

C. Decreases – More time for same distance means slower speed.

Question 47

22. What is the average speed of a 50-meter run in 10 seconds? A) 10 m/s B) 5 m/s C) 2 m/s D) 20 m/s

Answer 47

B. 5 m/s – 50 divided by 10 equals 5.

Question 48

23. Which motion shows acceleration? A) Standing still B) Walking slowly C) Changing speed D) Constant speed

Answer 48

C. Changing speed – Acceleration means a change in speed.

Question 49

24. The total path an object travels is its: A) Displacement B) Distance C) Speed D) Motion

Answer 49

B. Distance – It’s the total length of the path taken.

Question 50

25. What happens to the graph if speed increases over time? A) Line becomes flat B) Line curves upward C) Line curves downward D) Line disappears

Answer 50

B. Line curves upward – Acceleration creates a steeper curve.