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