Kinematics Trivia Quiz: Speed,Velocity, And Acceleration!

1. A car is at rest. What is its speed?

0 m/s

10 m/s

1 m/s

5 m/s

Since the car is at rest, it means that it is not moving. Therefore, its speed is 0 m/s.

Explanation

Since the car is at rest, it means that it is not moving. Therefore, its speed is 0 m/s.

2. A car travels for 800 km in 20 hours. The details of the journey are shown below.

Duration	Distance Covered
0 - 6 hours	200 km
6 - 8 hours	0 km(at rest)
8 - 16 hours	400 km
16 - 20 hours	200 km

Calculate the average speed of the journey?

54.5 km/h

44.4 km/h

40 km/h

63.89 km/h

The average speed of the journey can be calculated by dividing the total distance traveled (800 km) by the total duration of the journey (20 hours). 800 km / 20 hours = 40 km/h.

Explanation

The average speed of the journey can be calculated by dividing the total distance traveled (800 km) by the total duration of the journey (20 hours). 800 km / 20 hours = 40 km/h.

3. A car moves with a constant speed through 3 Km in 5 minutes. What is its speed?

10 m/s

0.6 m/s

1 m/s

600 m/s

The car moves with a constant speed of 10 m/s because it covers a distance of 3 km in 5 minutes. To find the speed, we can convert the distance to meters by multiplying it by 1000 (1 km = 1000 m). So, the car covers a distance of 3000 m in 5 minutes. To find the speed, we divide the distance by the time taken, which gives us 3000 m / 300 s = 10 m/s.

Explanation

The car moves with a constant speed of 10 m/s because it covers a distance of 3 km in 5 minutes. To find the speed, we can convert the distance to meters by multiplying it by 1000 (1 km = 1000 m). So, the car covers a distance of 3000 m in 5 minutes. To find the speed, we divide the distance by the time taken, which gives us 3000 m / 300 s = 10 m/s.

4. Lia runs at a constant speed of 4 m/s. What distance will he cover in 1 hr

14.4 Km

4 m

144 m

4 Km

Lia runs at a constant speed of 4 m/s. To find the distance he will cover in 1 hour, we need to convert the speed from meters per second to kilometers per hour. There are 3600 seconds in 1 hour, so we multiply the speed by 3600 to get the distance in meters per hour. Then, we divide the distance by 1000 to convert it to kilometers. Therefore, Lia will cover a distance of 14.4 km in 1 hour.

Explanation

Lia runs at a constant speed of 4 m/s. To find the distance he will cover in 1 hour, we need to convert the speed from meters per second to kilometers per hour. There are 3600 seconds in 1 hour, so we multiply the speed by 3600 to get the distance in meters per hour. Then, we divide the distance by 1000 to convert it to kilometers. Therefore, Lia will cover a distance of 14.4 km in 1 hour.

5. An aeroplane moves with a constant speed of 150 m/s. Find the distance travelled in 2 minutes?

18 Km

1800 m

300 m

300 Km

The distance travelled by the airplane can be calculated by multiplying its speed by the time taken. As the speed is given as 150 m/s and the time is given as 2 minutes, we need to convert the time to seconds before calculating the distance. Since there are 60 seconds in a minute, 2 minutes is equal to 2 * 60 = 120 seconds. Therefore, the distance travelled by the airplane is 150 m/s * 120 s = 18000 meters, which is equivalent to 18 kilometers.

Explanation

The distance travelled by the airplane can be calculated by multiplying its speed by the time taken. As the speed is given as 150 m/s and the time is given as 2 minutes, we need to convert the time to seconds before calculating the distance. Since there are 60 seconds in a minute, 2 minutes is equal to 2 * 60 = 120 seconds. Therefore, the distance travelled by the airplane is 150 m/s * 120 s = 18000 meters, which is equivalent to 18 kilometers.