Motion Grade 9

This is a velocity-time graph.  What is the object doing in segment A?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

Tags

CCSS.HSF.IF.B.4

This is a velocity-time graph.  What is the object doing in segment C?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

Tags

CCSS.HSF.IF.B.4

According to the graph how fast does the person travel in the first 5 seconds?

• 2 m/s
• 10 m/s
• 12.5 m/s
• 1 m/s

Tags

CCSS.8.EE.B.5

Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m s^–1. It implies that the boy is -

• At Rest

• Moving with no acceleration

• In accelerated motion

• Moving with uniform velocity

Tags

NGSS.HS-PS2-1

Area under (v-t) graph represents a physical quantity which has the unit

• m²

• m

• m³

• ms^-1

A car starting from rest attains a velocity of 90 km/hr in 50 sec. Assuming that the acceleration is uniform (i) the acceleration & (ii) distance travelled by the car.

• a = 1 m/s^2. & s = 500 m

• a = 0.5 m/s^2. & s = 500 m

• a = 1 m/s^2. & s = 625 m

• a = 0.5 m/s^2. & s = 625 m

Tags

NGSS.HS-PS2-1

Calculate the total displacement travelled by the object in a given graph.

• 200 m

• 240 m

• 300 m

• 340 m

A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 m/s²., with what velocity will it strike the ground? After what time will it strike the ground?

• v = 20 m/s; t = 10 sec

• v = 10 m/s; t = 20 sec

• v = 20 m/s; t = 2 sec

• v = 10 m/s; t = 10 sec

Tags

NGSS.HS-PS2-1

Sam while driving to school, computes the average speed for his trip to be 20 km/h. On his return trip along the same route, there is less traffic and the average speed is 30 km/hr. what is the average speed for Sam’s trip?

• 32 km/hr

• 24 km/hr

• 25 km/hr

• 60 km/hr

A ball is rolled at a velocity of 12 m/sec.  After 36 seconds, it comes to a stop.  What is the   acceleration of the ball?

• 3 m/s/s
• -3 m/s/s
• .33 m/s/s
• -.33 m/s/s

Tags

NGSS.HS-PS2-1