0 of 10 Questions completed
Questions:
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
0 of 10 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Average score |
|
Your score |
|
Pos. | Name | Entered on | Points | Result |
---|---|---|---|---|
Table is loading | ||||
No data available | ||||
A dart player releases a dart 2.4 m away from the dartboard where the bullseye is 1.7 m from the ground. The player successfully hits the bullseye by throwing from a height of 1.5 m at an angle of 30° above the horizontal.
Determine the initial velocity of the dart. (3)
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
An enemy ship was sailing 2 km from the coast. A cannon on a 100 metre-high cliff fired a cannon ball at an angle of 20° to the horizontal, at a speed of 150 ms-1.
(a) Determine the vertical and horizontal components of the initial velocity. 2
(b) Calculate the time taken for the cannon ball to reach the maximum height and hence the maximum height of the cannon ball above the water. 3
(c) Calculate the range of the cannon ball and hence determine how far the ship the cannon ball landed. 3
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
A large rock is dropped from a plane flying horizontally at an altitude of
4.00 x 103 m and with a speed of 900 km h-1.
(a) Calculate the distance that the rock will move horizontally before hitting the ground. 2
(b) Find the velocity of the rock just before it hits the ground. 2
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
.
An investigation was performed in which the motion of a projectile was analysed.
The apparatus was set up as shown.
The aim of the investigation was to find the relationship between the variables h
and x for the ball released on the ramp.
(a) Identify two ways to make this a more VALID investigation. 1
(b) The values of h and x were plotted on axes without labels, as shown.
Draw a line of best fit on this graph. 1
(c) With reference to the apparatus as shown, suggest a reason why the line of best fit does not pass through the origin. 2
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
A cannon ball is fired horizontally with a velocity of 50.0 ms-1 from the edge of the top of a cliff 150 m above sea level. The canon was then rotated up so that it was at an angle of 55 to the horizontal. A cannon ball was then fired with the same speed.
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
A projectile is launched from a cliff towards a duck, resting on a calm sea. The cliff is 150 m above sea level and the projectile has an initial velocity of 6 ms-1 at 23° above horizontal. The projectile hits the duck. (Assume a constant gravitational acceleration, magnitude 9.8 ms-2.)
(a) Calculate the horizontal distance of the duck from the cliff edge at the moment of impact. 3
*Recall that, for a quadratic equation ax2 + bx + c = 0, the solution is given by:
x=(-b±√(b^2-4ac) )/2a
(b) Describe the claims that Galileo made in his analysis of projectile motion. 2
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
A bullet is fired horizontally with a speed of 524 ms-1 from a height of 22.0 m above the ground.
(a) Calculate the time of flight of the bullet. 2
(b) Calculate the range (horizontal displacement) of the bullet). 1
(c) At what angle from the vertical will the bullet hit the ground? 2
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
A frictionless glider is moving at a uniform speed v m s-1 across a smooth horizontal table 1.225 m high when it reaches the edge, and falls to the floor and lands 1.8 m away from the table.
(a) How long after leaving the table does it take to strike the floor? 2
(b) Calculate the speed, v, of the glider as it leaves the table. 2
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
A large rock is dropped from a plane flying horizontally at an altitude of 4.00 x 103 m and with a speed of 900 km h-1.
(a) Calculate the distance that the rock will move horizontally before hitting the ground. 2
(b) Find the final vertical velocity and then the overall velocity of the rock just before it hits the ground. 3
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.
A small block is released from rest at a certain height h m above the platform and slides down a curved track. It shoots off horizontally from the track, which is 2.0 m above the floor level, with an initial speed u ms-1. The block then hits the ground after achieving range R m. The height h was changed and the effect on u and R was measured.
The data table shows how R changes as the speed u is altered.
Speed u (ms-1) 0.80 1.00 1.20 1.40 1.60
Range R (m) . 0.49 0.60 0.75 0.92 1.04
(a) On the graph paper below plot a graph of R versus u, and draw in the line of best fit. 3
(b) Given that R=2u/√g is the equation for the line on the graph, write an algebraic expression for the slope of the line? 1
(c) Calculate the value of g, the acceleration due to gravity, using the slope of the line on the graph. 1
(d) Explain the relationship between u and R. 2
This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.