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Unit 6 Review: Projectiles And Circular Motion
Test Description: Winnetonka High School, Freshman Physics
Instructions: Answer all questions to get your test result.
1) Two basketballs are projected off the edge of a table, one red and one yellow. The yellow one has a horizontal velocity of 5.0 m/s; the red one has a horizontal velocity of 3.5 m/s. (Assume air resistance is negligible). Choose the true statement.
A
Both balls hit the ground at the same time.
B
The yellow ball hits the ground first.
C
The red ball will never hit the ground.
D
The red ball hits the ground first.
2) Two basketballs are projected off the edge of a table, one red and one yellow. The yellow one has a horizontal velocity of 5.0 m/s; the red one has a horizontal velocity of 3.5 m/s. (Assume air resistance is negligible). Choose the true statement.
A
Both balls hit the ground at the same distance from the table.
B
The purple ball hits the ground further from the table.
C
The red ball hits the ground further from the table.
D
The yellow ball hits the ground further from the table.
3) Two basketballs are projected off the edge of a table, one red and one yellow. The yellow one has a mass of 5.0 g; the red one has a mass of 3.5 g. (Assume air resistance is negligible). Choose the true statement.
A
The yellow ball hits the ground first.
B
The red ball hits the ground first.
C
The red ball will never fall through the floor.
D
Both balls hit the ground at the same time.
4) Two basketballs are projected off the edge of a table, one red and one yellow. The yellow one has a mass of 5.0 g; the red one has a mass of 3.5 g. (Assume air resistance is negligible). Choose the true statement.
A
The combined forces of gravity and centripetal acceleration will keep the ball on the table indefinitely.
B
The yellow ball hits the ground further from the table.
C
Both balls hit the ground at the same distance from the table.
D
The red ball hits the ground further from the table.
5) Two basketballs are projected off the edge of 2 tables, one red and one yellow. The yellow one has an initial height of 5.0 m; the red one has an initial height of 3.5 m. (Assume air resistance is negligible). Choose the true statement.
A
Both balls hit the ground at the same distance from the table.
B
The yellow ball hits the ground further from the table.
C
The red ball hits the ground further from the table.
D
There are no balls. It’s a conspiracy.
6) Two basketballs are projected off the edge of 2 tables, one red and one yellow. The yellow one has an initial height of 5.0 m; the red one has an initial height of 3.5 m. (Assume air resistance is negligible). Choose the true statement.
A
Both balls hit the ground at the same time.
B
The yellow ball hits the ground first.
C
It depends on your point of view.
D
The red ball hits the ground first.
7) A marble is rolled into a center of a spiral tube that is lying on a table (neglect gravity). What shape path will it follow when it emerges?
A
A parabola.
B
Curved in the opposite direction of the spiral.
C
Straight out of the tube.
D
Curved in the direction of the spiral.
8) If you drop an object from a cliff, the shape of the Vertical Velocity vs. Time graph will have what shape?
A
Diagonal
B
Circle
C
Flat
D
Curve
9) If you drop an object from a cliff, the shape of the Vertical Position vs. Time graph will have what shape?
A
Flat
B
Curve
C
Diagonal
D
Circle
10) If you drop an object from a cliff, the shape of the Horizontal Position vs. Time graph will have what shape?
A
Circle
B
Diagonal
C
Curve
D
Flat
11) If you throw an object from a cliff, the shape of the Horizontal Velocity vs. Time graph will have what shape?
A
Flat
B
Curve
C
Circle
D
Diagonal
12) A white Ping-Pong ball is projected off the edge of a 1.0-m-high table with a horizontal velocity of 7.0 m/s. An orange Ping-Pong ball is DROPPED from the same height as the white one. Choose the true statement.
A
The white ball hits the ground first.
B
The white ball will float, because it is less dense than water.
C
Both balls hit the ground at the same time.
D
The orange ball hits the ground first.
13) A white Ping-Pong ball is projected off the edge of a 1.0-m-high table with a horizontal velocity of 7.0 m/s. An orange Ping-Pong ball is DROPPED from the same height as the white one. Choose the true statement.
A
The black ball has a greater vertical speed right before it hits the ground.
B
The white ball has a greater vertical speed right before it hits the ground.
C
Both balls have the same vertical speed right before they hit the ground.
D
The orange ball has a greater vertical speed right before it hits the ground.
*select an answer for all questions
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