Motion and Speed

Question 1

What is motion?

Answer 1

Motion is a change in position when compared to a reference point.

Question 2

What is a reference point?

Answer 2

A reference point is a point of comparison between an object that’s not moving (the reference point) and one that appears to be moving; often stationary

Question 3

What is an example of motion?

Answer 3

Answers may vary. 
Possible Answers:
Walking 
Running
Jumping Jacks
Flags in the Wind

Question 4

What are examples of reference points?

Answer 4

Answers may vary.
Possible Answers:
Tree
Wall 
Floor
House

Question 5

What is speed?

Answer 5

Speed is the rate at which an object moves.

Question 6

What does speed depend on?

Answer 6

It depends on how far an object goes (Distance) and how long it takes to get there (Time).

Question 7

What is the formula for speed?

Answer 7

Speed = Distance/Time

Question 8

What is the speed if the distance is 4 km and the time travelled is 2 hrs?

Answer 8

The speed would be 2km/hr.

Question 9

What is the speed if the distance is 10 m and the time is 5 seconds?

Answer 9

The speed would be 2m/s.

Question 10

What is the speed if the distance is 4 cm and the time is 1 second?

Answer 10

The speed would be 4cm/s.

Question 11

What is constant speed?

Answer 11

Constant speed is speed that doesn’t change.

Question 12

What are some examples of things that have constant speed?

Answer 12

Answers may vary.
Possible answers:
Escalator
Hands on a clock
Earth

Question 13

What is average speed?

Answer 13

Average speed is the total time it takes to go the total distance.

Question 14

What is the formula for average speed?

Answer 14

Average Speed = Total Distance/Total Time

Question 15

What is velocity?

Answer 15

Velocity is speed in a given direction

Question 16

How can you change the velocity?

Answer 16

You can change velocity either by changing the speed or by changing the direction.

Question 17

What is acceleration?

Answer 17

Acceleration is the rate at which velocity changes.

Question 18

What are the three ways you can accelerate?

Answer 18

You can:

1. Speed up (Positive Acceleration)
2. Slow down (Negative Acceleration)
3. Change Direction

Question 19

What is the formula for calculation acceleration?

Answer 19

Acceleration = (Final Velocity - Initial Velocity)/Time

Question 20

What does (-) acceleration mean?

Answer 20

(-) means slowing down NOT going backwards.