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Forces Review 1
Test Description: Middle school
Instructions: Answer all questions to get your test result.
1) Another name for Newton's 1st Law of Motion is
A
Law of Reactions
B
Law of Forces
C
Law of Inertia
D
Law of Momentum
2) According to Newton's 2nd Law of Motion, what 3 quantities are related?
A
gravity, friction and resistance
B
inertia, mass and gravity
C
momentum, mass and velocity
D
force, mass and acceleration
3) A 2000 kg truck accelerates at a rate of 32 m/sec2. How much force was required?
A
64,000 m/sec2
B
64,000 N
C
62.5 m/sec2
D
62.5 N
4) According to Newton's 3rd Law of Motion, forces act ____
A
in pairs
B
alone
C
one at a time
D
in circles
5) The unit for force is the _____
A
kilogram
B
meter
C
m/sec2
D
newton
6) Which of the following causes a resting object to start moving?
A
balanced forces
B
unbalanced forces
C
action/reaction forces
D
net forces
7) What is the net force when you combine 10 N South with 5 N South?
A
5 N North
B
15 N South
C
15 N North
D
5 N South
8) A tow truck exerts a force of 2500 N on a car, accelerating it at 5 m/sec2. What is the mass of the car?
A
12,500 N
B
500 N
C
500 kg
D
12,500 kg
9) When a mover puts furniture on wheels, which type of friction is he using to make the job easier?
A
static friction
B
sliding kinetic friction
C
rolling kinetic friction
D
gravitational friction
10) What is a way to reduce friction?
A
Wax ski before skiing down a slope
B
Push harder when cleaning
C
Press harder while sanding wood
D
Wear batting gloves to bat
*select an answer for all questions
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