9th class P.S Quiz9(MOTION) BY PRABHAKAR MIRIYALA

An object is _____ if its position changes.

• in motion

• at reset

• a frame of reference

• magical

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

A change in speed over a given period of time is

• velocity

• motion

• speed

• acceleration

Which information is needed to determine how fast a truck is traveling?

• direction and mass
• distance and time
• size and speed
• time and weight

When objects remain in the same place, then it is said to be

• motion

• accelerated

• rest

• deccelerated

Calculate the speed of a sprinter who ran 200 meters in 20 seconds.

• 10m/s

• 10 km/s

• 10 m/hr

• 10 km/hr

The measure of how quickly something moves or the distance it moves in a given amount of time is called

• acceleration

• velocity

• speed

• distance

What is the formula to calculate speed?

• Speed = time + distance

• Speed = distance/time

• Speed = distance x time

• Speed=displacement/time

If you run around the football field (which is 2 miles) 3 times, what is your distance?

• 0 miles
• 3 miles
• 6 miles
• 9 miles

A ball rolls down a hill at 3 meters/second. The hill is 36 meters long. How many seconds does it take the ball to reach the bottom of the hill?

• 39 seconds

• 12 seconds

• 15 seconds

• 198 seconds

Srinu runs 400 meters to Ravi's house, turns around, and runs 400 meters back home. What is Srinu's displacement?

• 0 meters

• 400 meters

• 800 meters

• 1600 meters