Download presentation

Presentation is loading. Please wait.

Published byDwayne Robert Modified over 2 years ago

1
Dynamics Questions Chris Parkes

2
s-t graph I drop a ball out of the window of my office (4 th floor) – which graph best represents the distance travelled with time by the ball before it hits the ground? 0 0 s t 0 0 s t 0 0 s t 0 0 s t 0 0 s t

3
v-t graph I drop a ball out of the window of my office (4 th floor) – which graph best represents the velocity of the ball with time before it hits the ground? 0 0 v t 0 0 v t 0 0 v t 0 0 v t 0 0 v t

4
Projectiles Cannons firing shells of varying masses at different angles and velocities. Which has the greatest range ? (neglecting air resistance) x y x,y,t v 2) m= 1Kg = 45º V= 70.7 m/s (V x = 50 m/s V y = 50 m/s) 3) m= 2Kg = 45º V= 70.7 m/s (V x = 50 m/s V y = 50 m/s) 4) m= 2Kg = 60º V= 100 m/s (V x = 50 m/s V y = 86.6 m/s) 1) m= 1Kg = 30º V= 57.7 m/s (V x = 50 m/s V y = 28.9 m/s)

5
speed A driver travels ¾ of his trip distance at one velocity (v) gets caught by a speed camera and completes it at half this velocity (½ v). What was the driver’s average speed for the trip? 1)0.85v 2)0.80v 3)0.75v 4)0.70v 5)0.65v

6
Dropped bullet One bullet is fired from a gun. At the same time another is simply dropped from the same height. Which hits the ground first ? 1.Dropped bullet 2.Fired bullet 3.Both at same time

7
Newton 2 In which diagram will the magnitude of the acceleration be the largest? 1kg 2kg 3kg 4kg 3kg 5kg 6kg 10kg1)2)3) 4)

8
The Levi logo has What happens if I replace one of the horses with a fence post – does this ? Horse Post 1.Cut tension on jeans by one half 2.Not change tension 3.Double tension

9
Rubber Bullet A rubber bullet and an aluminium bullet have same size,speed, mass. They are fired at a block of wood. Which is most likely to knock the block over? 1.Rubber bullet 2.Aluminium bullet 3.Both same

10
Pull a pendulum to one side let it go. As it swings back and forwards….. 1.Both angular and linear momentum are conserved 2.Only angular momentum 3.Only linear momentum 4.neither

11
1.0.5 s 2.1s 3.2s 4.3s Pull a pendulum one degree to one side let it go. It takes 1s to swing to vertical. Now pull it two degrees to the side…how long does the swing take?

12
Gravity The gravitational force on a copy of University Physics at the top of Ben Nevis is 40N. What would the approximate gravitational force be on the same book on a mountain twice as high ? 1) 5N 2) 10 N 3) 20 N 4) 40 N 5) 80N

13
Roller Coaster -1 A car moves along the track as shown. At a the car is moving with 10 m/s. Neglecting friction, how fast will the car be moving at B ? 60m 10m 10m/s A B 60m 1)0m/s 2) 10m/s3) 20m/s 4) 30m/s5) 40m/s6) won’t make it

14
Roller Coaster -2 A car moves along the track as shown. At a the car is moving with 10 m/s. Neglecting friction, how fast will the car be moving at B ? 60m 10m 10m/s A B 20m 1)0m/s 2) 10m/s3) 20m/s 4) 30m/s5) 40m/s6) won’t make it

15
Roller Coaster -3 A car moves along the track as shown. At a the car is moving with 10 m/s. Neglecting friction, how fast will the car be moving at B ? 60m 10m 10m/s A B 65m 1)0m/s 2) 10m/s3) 20m/s 4) 30m/s5) 40m/s6) won’t make it

16
Blocks-1 Three blocks are pushed by equal forces F over a frictionless surface for 2m. Mass of block A > mass B > mass C Which will have the largest kinetic energy? 1) block A 2) block B 3) block C 4) all have same K.E. 5) depends on precise masses F 2m

17
Blocks-2 Three blocks are pushed by equal forces F over a frictionless surface for 2m. Mass of block A > mass B > mass C Which will be travelling fastest? 1) block A 2) block B 3) block C 4) all have same speed 5) depends on precise masses F 2m

18
Blocks 3 Three blocks are pushed by equal forces F over a frictionless surface for 2m. Mass of block A > mass B > mass C Which will have received the greatest impulse during the 2m push? 1) block A 2) block B 3) block C 4) all will have same impulse 5) depends on precise masses F 2m

19
Spring A lab cart mass m velocity v crashes into a spring and compresses the spring with spring constant k. What is the maximum compression of the spring ?

Similar presentations

© 2016 SlidePlayer.com Inc.

All rights reserved.

Ads by Google