Download 2. What is the net force?

Make Your Formula Triangles
D= m/v
F=mxa
W=fxd
S = d/t
4. Beth ran the 100 meter race in 20
seconds. What was Beth’s speed?
5. The distance from here to El
Paso, Texas is 880 miles. David is
traveling at 80 mph. How long will
it take David to get to El Paso?
1. A toy boat has a mass of 33g and
a volume of 11mL. What is the
density of the toy boat?
6. Will the boat float or sink in water?
1. Calculate the mass of the rock, if the
density is equal to 5 g/ mL.
Use the Griddable and bubble in your
answer.
4. A rock with a mass of 75 kg begins
to roll down a hill at an acceleration of
3m/s. What is the force the rock is
moving at?
2.The mass of a rubber ball is 12g. The
force the ball is thrown with is 6 N.
What is the acceleration of the ball?
3. A bowling ball is thrown with a force
of 210 Newtons. If the ball is
accelerating at 5 meters per second
(m/s), what is the mass of the bowling
ball?
1. If Kitty pulls the rope with a force of
10 N and Doggy pulls at a force of 22N,
are the forces balanced or
unbalanced?
2. What is the net force operating?
10 N
22 N
3. A book is resting upon a shelf. The
book pushes against the shelf with a
force of 2 N. Why doesn’t the shelf
move?
A. The forces are unbalanced, but the
shelf pushes harder.
B. The forces are balanced and acting
equally in opposite directions.
10 N
5N
4. Two opposing forces are acting on the box.
Which statement best describes these forces?
A. The forces are balanced and there is no net
force acting on the box, resulting in no motion.
B. Forces are unbalanced and the net force is 15
N to the right.
C. Forces are unbalanced and the net force is 5
N to the right.
3. Water has a density of 1g/mL. If you
add oil to the water, which has a
density of .98 g/mL, what will happen
to the oil?
A. It will sink.
B. It will suspend.
C. It will float.
1. Tanya was moving a 525 kg box
with a force of 25 N. What is the
acceleration of the box?
2. Jamie and John are fighting over the
video game controller. Jamie is pulling
to the right with 12N and John is
pulling to the left with 18 N. Who will
get the controller?
3. Is there a net force? If so, how big is
the net force and in which direction?
4. Calculate the density of the toy
dinosaur.
• Mass of toy is 24 g.
5. Calculate the density of the cube.
• Mass of cube is 32 grams.
W = 2 cm
H = 2 cm
L = 2 cm
2. Calculate the volume of the
television.
• D = 15 kg/cm³
• m = 30 kg
5. Sally pushed a box with a force of 60
Newtons a distance of 5 meters. How
much work did Sally do?
1. You would like to push a box in your
room into the corner. The distance is 3
meters. The work needed to
accomplish this is 99 N/m or 99 Joules.
What force will you need to apply to
move the box?
2. Mathew bought a new Porsche. He
wants to know the force it took for his
Porsche with a mass of 1500kg to
reach the acceleration of 30 m/s².
3. Laura was taking a trip to New
Orleans, Louisiana. The distance to
New Orleans is 600 miles. She is
traveling at a speed of 60 mph. How
long will it take Laura to get there?
3. The paper airplane is accelerating at
2m/s². The mass of the airplane is 5g.
What is the force applied?
4. Are the forces balanced or
unbalanced?
5. What is the net force if any?
25 N
25 N
1. What is the acceleration of the
elephant?
2. If the boy lets go of the rope, what
will happen to the elephant?
3. Why?
15N
3000kg
4. At what rate will the weight
accelerate?
25 kg
5. Are the forces balanced or
unbalanced?
6. What is the net force?
7. What type of simple machine is
this?
1. What is the opposing force as Josh
moves the dresser up the ramp?
2. If Josh is pushing the dresser with a
force of 20 N against the opposing
force of 2 N, what is the net force on
the dresser?
3. Which of Newton’s Laws of motion
best explains what is happening here?
1500N of lift
1500 N of thrust
4. Which of the two balls has the
greatest inertia?
5. Why?
1. Susie had a cup of coffee in her hand when
she had to slam on the brakes. If the car is
moving at a speed of 25mph, at what speed is
the coffee flying out of the cup?
2. Why isn’t Susie flying out of the car?
4. The boy hit the bat with a force of
14N. The mass of the ball is 7g. What
is the acceleration of the ball?
5. The boy was able to pull the table cloth
out from under the dishes. Which of
Newton’s laws was he demonstrating?
A. 1st Law – Inertia
B. 2nd Law – F=m x a
C. 3rd Law – equal /opposite
2. Create a line graph with the data.
Label: Dependent Variable
Title________________
Label: Independent Variable
1. What is the force acting on the
Earth’s water as it bulges outward?
2. What type of tide is shown here –
spring or neap tide?