Subtopics

Question 1

What does the slope of a displacement-time graph represent?

Answer 1

The slope of a displacement-time graph represents velocity.

Question 2

What does a straight (diagonal) slope on a displacement-time graph indicate?

Answer 2

A straight (diagonal) slope indicates constant velocity.

Question 3

What does a curved slope on a displacement-time graph represent?

Answer 3

A curved slope represents acceleration.

Question 4

What does a positive slope on a displacement-time graph signify

Answer 4

A positive slope signifies motion in the positive direction.

Question 5

What does a negative slope on a displacement-time graph indicate?

Answer 5

A negative slope indicates motion in the negative direction.

Question 6

What does a zero slope (horizontal line) on a displacement-time graph represent?

Answer 6

A zero slope (horizontal line) represents a state of rest.

Question 7

What does the area under the curve on a displacement-time graph represent?

Answer 7

The area under the curve on a displacement-time graph is meaningless.

Question 8

What does the slope of a velocity-time graph represent?

Answer 8

The slope of a velocity-time graph represents acceleration.

Question 9

What does a straight line on a velocity-time graph indicate?

Answer 9

A straight line on a velocity-time graph indicates uniform acceleration.

Question 10

What does a curved line on a velocity-time graph represent?

Answer 10

A curved line on a velocity-time graph represents non-uniform acceleration.

Question 11

What does a positive slope on a velocity-time graph signify?

Answer 11

A positive slope signifies an increase in velocity in the positive direction.

Question 12

What does a negative slope on a velocity-time graph indicate?

Answer 12

A negative slope indicates an increase in velocity in the negative direction.

Question 13

What does a zero slope (horizontal line) on a velocity-time graph represent?

Answer 13

A zero slope (horizontal line) represents motion with constant velocity.

Question 14

What does the area under the curve on a velocity-time graph represent?

Answer 14

The area under the curve on a velocity-time graph equals the displacement or distance traveled.

Question 15

What does a zero slope (horizontal line) on an acceleration-time graph represent?

Answer 15

A zero slope (horizontal line) on an acceleration-time graph represents an object undergoing constant acceleration.

Question 16

What does the area under the curve on an acceleration-time graph represent?

Answer 16

The area under the curve on an acceleration-time graph equals the change in velocity.

Question 17

What does the steepness of the slope on an acceleration-time graph indicate?

Answer 17

The steepness of the slope on an acceleration-time graph is meaningless.

Question 18

What type of quantity is distance?

Answer 18

Scalar quantity

Question 19

What type of quantity is Speed?

Answer 19

Scalar quantity

Question 20

What type of quantity is Mass?

Answer 20

Scalar quantity

Question 21

What type of quantity is Time?

Answer 21

Scalar quantity

Question 22

What type of quantity is Volume?

Answer 22

Scalar quantity

Question 23

What type of quantity is Density?

Answer 23

Scalar quantity

Question 24

What type of quantity is Pressure?

Answer 24

Scalar quantity

Question 25

What type of quantity is Electric charge?

Answer 25

Scalar quantity

Question 26

What type of quantity is temperature?

Answer 26

Scalar quantity

Question 27

What type of quantity is Displacement?

Answer 27

Vector quantity

Question 28

What type of quantity is Velocity?

Answer 28

Vector quantity

Question 29

What type of quantity is Acceleration?

Answer 29

Vector quantity

Question 30

What type of quantity is Momentum

Answer 30

Vector quantity

Question 31

What is a scalar?

Answer 31

A scalar is a quantity that has only magnitude (size) and no direction.

Question 32

What is a vector?

Answer 32

A vector is a quantity that has both magnitude and direction.

Question 33

What does Newton's First Law state?

Answer 33

Newton's First Law states: A body will remain at rest or move with constant velocity unless acted on by a resultant force.

Question 34

What does Newton's First Law explain about motion?

Answer 34

The law explains why things move with a constant (or uniform) velocity.

Question 35

What happens if the forces acting on an object are balanced?

Answer 35

If the forces acting on an object are balanced, then the resultant force is zero and the object is at rest or constant velocity,

Question 36

What does Newton's Second Law state?

Answer 36

Newton's Second Law states: The acceleration of an object with constant mass is directly proportional to the resultant force on it.

Question 37

What happens if the resultant force is along the direction of motion?

Answer 37

If the resultant force is along the direction of motion, the body will either speed up (accelerate) or slow down (decelerate).

Question 38

What does it mean when an object is at terminal velocity?

Answer 38

When the drag forces become equal to the driving force, the object reaches its maximum velocity and can no longer accelerate, it is said to be moving at terminal velocity.

Question 39

What happens if the resultant force is at an angle to the direction of motion?

Answer 39

If the resultant force is at an angle, the body will change direction.

Question 40

How does the mass of a body affect the change produced by an applied force?

Answer 40

The greater the mass of a body, the smaller the change produced by an applied force.

Question 41

What is freefall?

Answer 41

Freefall describes the motion of falling objects where the only force acting on them is weight and drag forces are ignored.

Question 42

What does freefall reveal about the acceleration of objects regardless of their mass or weight?

Answer 42

Freefall shows that all objects must fall with exactly the same value for acceleration (9.81 m/s^2), regardless of their mass or weight.

Question 43

What does Newton's Third Law of Motion state?

Answer 43

Newton's Third Law of Motion states: Whenever two bodies interact, the forces they exert on each other are equal in size, act in opposite directions, and are of the same type.

Question 44

What important principles about forces does Newton's Third Law explain?

Answer 44

Newton's Third Law explains that all forces arise in pairs and that Force pairs are of the same type.

Question 45

What does the principle of conservation of momentum state?

Answer 45

The principle of conservation of momentum states that in a closed system, the total momentum before an event is equal to the total momentum after the event.

Question 46

What happens when one object exerts a force on another object?

Answer 46

When one object exerts a force on another object, the second object will exert an equal force on the first object in the opposite direction. (Newton's third law)

Question 47

What occurs when two objects collide?

Answer 47

When two objects collide, both objects will react, generally causing one object to speed up (gain momentum) and the other object to slow down (lose momentum).

Question 48

What is a moment and how does it occur?

Answer 48

A moment is the turning effect of a force. Moments occur when forces cause objects to rotate about some pivot.