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Laws Of Motion
Test Description: What do you know about Newton's Laws of Motion
Instructions: Answer all questions to get your test result.
1) A magician suddenly jerks a tablecloth out from under the dishes on a table. This best demonstrates
A
that gravity tends to hold the dishes securely
B
that the dishes have inertia
C
an action-reaction pair of forces
D
that the dishes have no acceleration
2) What causes a falling sky diver to slow down after the parachute opens?
A
the ground
B
gravity
C
friction
D
air resistance
3) What is the speed of a car that travels 200 meters in 25 seconds?
A
0.8 m/s
B
5000 m/s
C
0.125 m/s
D
8 m/s
4) If an object is moving with a velocity of 24 m/s and has an acceleration of -4 m/s^2, how long will it take to stop?
A
6 s
B
-6 m
C
-6 s
D
-96 s
5) Motion can be described by distance, speed, displacement, and velocity, where _________ and _________ also include direction.
A
speed; displacement
B
distance; displacement
C
displacement; velocity
D
speed; velocity
6) A car accelerates from 15 m/s to 30 m/s in 3.0 s. What is the car's acceleration?
A
5 m/s/s
B
20 m/s/s
C
10 m/s/s
D
15 m/s/s
7) Acceleration refers to
A
increasing speed
B
all of the above
C
changing direction
D
decreasing speed
8) An object traveling 20 m/s accelerates 5 m/s/s for 12 seconds. What is its final velocity?
A
There is not enough information.
B
100 m/s
C
60 m/s
D
80 m/s
9) A car travels 110 km North, turns around and then travels another 80 km South. The final displacement of the car is
A
110 km
B
30 km
C
80 km
D
190 km
10) In a tug-o-war match, the blue team is pulling with a force of 310 N and the red team is putting with a force of 335 N. Which team will win and by what force?
A
blue team wins with a force of -25N
B
red team wins with a force of 25N
C
red team wins with a force of -25N
D
blue team wins with a force of 25N
*select an answer for all questions
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