Motion and Forces

Question 1

What is a distance-time graph used to represent?

Answer 1

The motion of an object over a period of time.

Question 2

In a distance-time graph, what does the slope of the line represent?

Answer 2

The speed of the object.

Question 3

True or False: A steeper slope in a distance-time graph indicates a slower speed.

Answer 3

False

Question 4

What does a horizontal line in a distance-time graph indicate?

Answer 4

The object is at rest.

Question 5

What does a curved line in a distance-time graph indicate?

Answer 5

The object is accelerating or decelerating.

Question 6

What does the area under the line in a distance-time graph represent?

Answer 6

The total distance traveled.

Question 7

What is the equation for calculating speed using a distance-time graph?

Answer 7

Speed = Distance / Time

Question 8

What is the unit of measurement for speed in a distance-time graph?

Answer 8

Meters per second (m/s)

Question 9

Fill in the blank: The slope of a distance-time graph is equal to the _________ of the object.

Answer 9

Speed

Question 10

What does a negative slope in a distance-time graph indicate?

Answer 10

The object is moving in the opposite direction.

Question 11

What information can you determine from the y-intercept of a distance-time graph?

Answer 11

The initial position of the object.

Question 12

What information can you determine from the x-intercept of a distance-time graph?

Answer 12

The time when the object first started moving.

Question 13

True or False: A horizontal line in a distance-time graph indicates constant speed.

Answer 13

True

Question 14

What does a steep upward slope in a distance-time graph indicate?

Answer 14

A high speed.

Question 15

What does a steep downward slope in a distance-time graph indicate?

Answer 15

A high negative speed.

Question 16

What does a shallow slope in a distance-time graph indicate?

Answer 16

A low speed.

Question 17

What does a shallow downward slope in a distance-time graph indicate?

Answer 17

A low negative speed.

Question 18

What is the difference between speed and velocity in a distance-time graph?

Answer 18

Speed is scalar, while velocity is a vector that includes direction.

Question 19

What does it mean if a distance-time graph has a flat section?

Answer 19

The object is stationary.

Question 20

What does it mean if a distance-time graph has a steeper slope?

Answer 20

The object is moving faster.

Question 21

What does it mean if a distance-time graph has a less steep slope?

Answer 21

The object is moving slower.

Question 22

What does the gradient of a distance-time graph represent?

Answer 22

The speed of the object.

Question 23

What does the area under a distance-time graph represent?

Answer 23

The total distance traveled.

Question 24

What does a straight horizontal line in a distance-time graph indicate?

Answer 24

The object is stationary.

Question 25

How do you work out distance travelled on a velocity-time graph?

Answer 25

Calculate the area under the graph

Question 26

What is Newton's first law?

Answer 26

An object will stay at rest or continue to move at a constant speed in the same direction unless acted upon by a resultant force

Question 27

What is Newton's 2nd law?

Answer 27

F = m x a

Question 28

What is Newton's 3rd law?

Answer 28

For every action there is an equal and opposite reaction!

Question 29

Define momentum

Answer 29

It's mass multiplied by its velocity.

Question 30

How do you calculate stopping distance?

Answer 30

Thinking distance + Braking distance

Question 31

What factors affect thinking distance?

Answer 31

Influence of drugs/alcohol, tiredness, focus

Question 32

What factors affect stopping distance?

Answer 32

Speed, tires, road slippiness (rain, ice, etc)