kinematics diagnostic quiz

. The Diaoyu Islands is China's territory since ancient times, and straight line

distance between Diaoyu Island and Wenzhou is 356km. One day morning, China Marine Surveillance ship to safeguard China’s sovereignty over Diaoyu

Island, departed from Wenzhou at 8:00am to Diaoyu Islands, sailing 480km, which lasted 8hours and 20mins to arrive Diaoyu Island. Which of the following statement is correct. ( )

• 8:00 means the time length during

• 8hours and 20mins means the time instant

• the displacement of the ship is 480km, distance is 356km

• the distance and displacement are the same size.

which of the following statement is correct( )

• the start price of Taxi is 10.00RMB (less than 2km), the “2km” means displacement

• when we analyze movement of a man when he is walking along a straight road, the man can be regarded as a particle

• distance and displacement can be the same direction.

shown in the given diagram, projected a particle vertically upward from 3m high above the ground, it moves up for 5m to the height position, then falls back to ground. What is the displacement and distance if set ground as origin.

• 3m, 5m

• 3m, 13m

• -3m, 5m

• -3m, 13m

GPS on the car shows in a given diagram, which of the statement is not correct ( )

• when we use GPS, car can be seen as a particle.

• the 11.6km in “备选方案二” means displacement

• 22mins in “时间最短方案”means time length.

One parade marches along “解放路雕像------解放南路-------北京路--------解放北路------解放路雕像”, the whole journey is about 10km, and lasted for 3hours, which of the following statement is correct ( ).

• average velocity of the march is 3.3km/h

• average speed of the march is 3.3km/h

• when one member of the parade finished his journey, his displacement is 10km

• the parade can't be seen as a particle

Find the time take for a particle travelling 30m at a constant speed of 5m/s

find the displacement of a particle travelling with a velocity of 12m/s for 12s

find the velocity of a particle that has a displacement of 24m in 8 seconds

find the change in velocity when a particle accelerates at 10m/s2 for 10s

find the acceleration when a particle velocity changes from 20m/s to 50m/s in 10s