Testing your knowledge on chapter Speed

(Remember, 4.1) What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

(Remember, 4.2) Which of these measurements is more precise?

• 5 seconds

• 4.6 seconds

• 4.58 seconds

• 4.583 seconds

(Remember, 4.3) If the slope of my distance-time graph becomes steeper, this means...

• The distance the object travels becomes longer.

• The speed of the object stays the same.

• The speed of the object becomes slower.

• The speed of the object becomes faster.

• Acceleration

• Change in speed

• Time

• Distance

(Remember, 4.5) A discrete variable is...

• A variable that you don't know yet

• A variable that can take any number

• A variable that must remain secret

• A variable that can only be whole numbers

(Apply, 4.1) A toy car moved along a 1.2 km track in 6 min. Calculate the speed of the toy car in m/s.

• 3.33 m/s

• 0.2 m/s

• 0.3 m/s

• 200 m/s

(Apply, 4.3) The image shows a graph of a race between 3 runners. The distance between the starting line and the finishing line is 8 meters. Which runner won the race?

• A
• B
• C

(Apply, 4.4) Which change in speed represents the greatest acceleration?

• From 4.35 m/s to 6.6 m/s in 2.3 seconds

• From 20.6 km/h to 21.4 km/h in 0.5 seconds

• From 0 km/h to 100 km/h in 4 minutes

• From 8.5 m/s to 10.36 m/s in 3,2 seconds

(Apply, 4.4) Which of the following statements regarding the graph is true? There can be multiple correct answers. Be sure to select all the correct ones if this is the case.

• During section B, the object is standing still.

• During section D, there is an acceleration.

• During section A, there is an acceleration.

• Section C has a higher acceleration than section A

• Section A has a higher acceleration than section C

(Apply, 4.1) The NS recently added a train connection from Amsterdam to London. The first part of this connection is going from Amsterdam to Brussels, this takes 1 hour and 53 minutes and covers a distance of 209 km. In Brussels you take another train which takes you to London. This train takes 2 hours and 1 minute to cover a distance of 375 kilometers. What is the average speed of this journey?

• Around 150 km/h

• Around 200 km/h

• Around 250 km/h

• Around 100 km/h