WorksheetsCBA#2 Review 2024
Total questions: 25
Worksheet time: 15mins
Convert 12.8 km to cm
1280000
12800
12800000
1280
What does this graph represent?
Acceleration
Not moving
Constant speed
What does this graph represent?
Constant speed
Accelerating
Not moving
Decreasing speed
What does this graph represent?
Accelerating
Not moving
Constant speed
Decreasing speed
Vectors have
magnitude and direction
only magnitude
only time
time and direction
Scalars have
only magnitude
magnitude and direction
only time
time and direction
Change 5,676,000,000 to scientific notation
5.67 x109
5.67 x106
5.67 x108
5.67 x1010
A cheetah runs at a straight line decreasing its speed from 70 m/s to 53 m/s in 5 seconds. Calculate the cheetahs acceleration.
3 m/s2
3.4 m/s2
4 m/s2
3.6 m/s2
Match the following vectors to the correct answer
B (a)
C (b)
F = m×a
If the missing leftward force is 16 N, what is the magnitude of its acceleration to make this Free Body Diagram true?
70 m/s2
72 m/s2
68 m/s2
0 m/s2
A student is pushing a chair across the classroom. Compared to the magnitude of the force exerted on the chair by the student, the magnitude of the force exerted on the student by the chair is ...
(HINT: one of Newton's Laws)
Same
Smaller
Larger
Zero
The magnitude of the gravitational force between 2 objects is 20 N. If the mass of each object were doubled, the magnitude of the gravitational force between the objects would be?
80 N
10 N
5 N
40 N
If the distance between 2 masses is tripled, the gravitational force between them change will (a) by the factor of (b) .
The student exerts 205 N to run up two flights of stairs to a landing. It takes the student 25 seconds to go up a total of 7.o meters above her starting point. What power does the student develop during her run?
15.4 w
20.6 w
16 w
16.4 w
If a neighbor pushes a lawnmower four times as far as you do but exerts only half the force, which one of you does more work and by how much?
Neighbor, double the work
You, double the work
Neighbor, half the work
You, half the work
A student exerts a force of 98 N to raise a table 3 meters from the floor. What is the approximate work done by the student in joules?
304 J
314 J
294 J
289 J
While on an elevator, a 40 kg student is raised at a vertical distance of 16 meters. What is the total change in the students gravitational potential energy?
6,272 J
6, 350 J
6,332 J
6,265 J
A 77 kg person is in a 136 kg motorcycle with a speed of 10 m/s. What is the combined kinetic energy of the person and the motorcycle?
10,750 J
10,700 J
10,600 J
10,650 J
Where on the diagram will a rollercoaster have the greatest potential energy?
G
B
D
A
Where on the diagram will a rollercoaster have the greatest kinetic energy?
D
G
A
H
Where on the diagram will a rollercoaster have both greatest potential energy and greatest kinetic energy?
C
E
D
B
A student figures out that by moving a 5 kg box down a frictionless slide converts 150 J of potential energy into kinetic energy. If the box reaches the bottom of the slide with a speed of 8 m/s, what can be inferred about the energy conservation?
Some energy is lost
Energy is not conserved
All potential energy is converted to kinetic energy
Kinetic energy is greater than potential energy
A 3 kg toy is moving with a velocity of 8 m/s. What is the momentum of the toy?
24 kg m/s
20 kg m/s
14 kg m/s
28 kg m/s
A student is applying a force of 15 N for 8 seconds to stop an 85 kg car traveling at 20 m/s. What is the magnitude of the impulse applied to stop the car?
150 N s
100 N s
120 N s
130 N s
Steve with a mass of 77 kg collides with a stationary Jacob who has a mass of 65 kg while running at 8 m/s. At the collision both students fall to the ground together. What is the final velocity of both students?
6.23 m/s
4.34 m/s
5.00 m/s
2.58 m/s
