Question

6. A bus travels down a straight highway and goes from 0 to 10m/s in 5 seconds.

What is its acceleration?

a. 2m/s2

b. 3m/s2

c. 4m/s2

d. 5m/s2 7. A car can travel 50 meters in 10 seconds. A fast motor bike can travel 5 meters

in a second. A bus can cover 500 meters in 100 seconds. Which vehicle has the

highest speed?

a. The car has the highest speed because it travels a great distance in a

short time.

b. The bus has the highest speed because it can travel the greatest distance.

c. The bike has the highest speed because it has the shortest travel time.

d. All their speeds are equal.

8. Which of the following is TRUE about speed and velocity?

a. Speed is a vector and velocity is scalar.

b. Velocity is the speed in a particular direction.

c. An object can accelerate even if the velocity is constant.

d. A change in speed causes an acceleration. A change in velocity causes

deceleration.

9. A bicycle has an average speed of 2m/s. This means that _________.

a. in 1 second, it travels 1 meter

b. it can travel 4 meters in 2 seconds

c. it takes 2 seconds to travel 1 meter

d. it can travel 2 kilometers in one hour

10.An object can accelerate while moving at constant speed. Which situation

illustrates this?

a. A roller coaster making a fast dive.

b. A bus going uphill at constant speed.

c. A bump car going in circles at constant speed.

d. A car moving down a straight highway at constant speed.​

Answer 1

6) 2m/s²

7)All the speeds are equal

8) Velocity is speed in a particular direction

9) it can travel 4 m in 2 sec

10)a bus going uphill at constant speed (not sure abt this)