Transcript Warm Ups and Closings Physical Science 12-03

Warm Up
12/03
Solve for mass:
What is the mass of an object if a
force of 17 N causes it to
accelerate at 1.5 m/s2?
F=mxa
Closing
12/03
What force is required to
accelerate a 5 kg object to 6 m/s2?
F = mass x acceleration
a.
b.
c.
d.
30 m/s2
30 N
10 m/s2
10 N
Warm Up
12/04
Calculate the net force of the following
object. Are the forces balanced or
unbalanced?
32 N
34 N
Closing
12/04
Practice CRCT Question
Which of Newton’s Laws states that for
every action there is an equal and
opposite reaction?
A. Newton’s 1st Law of Motion
B. Newton’s 2nd Law of Motion
C. Newton’s 3rd Law of Motion
D. The Conservation of Matter Law
Warm Up
12/05
Practice CRCT Question:
The figure below shows the horizontal forces that act on
a box that is pushed from the left with a force of 12 N.
What force is resisting the horizontal motion in this
illustration?
a.gravity
b.inertia
c.friction
d.momentum
Closing
12/05
Practice CRCT Question:
What is the rate of change of an object’s
velocity over time called?
A. acceleration
B. deceleration
C. speed
D. distance
Warm Up
12/06
Newton’s 1st Law of Motion is also
called the Law of ______________.
A.velocity
B.acceleration
C.gravity
D.inertia
Closing
12/06
Practice CRCT Question
What is the acceleration of the
skateboard if the mass is 11 kg and
the force pushing the skateboard is
275 N.
a.
b.
c.
d.
25 mph
25 m/s2
2475 m/s
25 m/s
Warm Up
12/07
Practice CRCT Question:
A force that attracts any two
objects with mass is called….
a. gravity
b. inertia
c. friction
d. momentum
Closing
12/07
Practice CRCT Question
What is the tendency to resist
any change in motion called?
a. friction
b. velocity
c. gravity
d. inertia