Force and Motion 1
Force and Motion 2
Force and Motion 3
Force and Motion 4
Force and Motion 5
100
If these boys are pulling with the same amount of force. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
Both will fall down.
They will not move at all.
100
Combined forces that act upon an object.
What is Net force?
100
What pulls a ball back to earth?
a. Gas
b. Gravity
c. Friction
d. Molecules
b. Gravity
100
A ball rolling down a hill is an example of which Newton’s Law of Motion?
1st Law, Inertia
100
What are two examples of forces?
a. Art and Music
b. A push or pull
c. A stand or ground
d. The dark side and the light side
A push or pull
200
Which of the following statements are true?
A. Balanced forces cause a change in motion.
B. Unbalanced forces cause a change in motion.
C. Forces do not effect the change in motion.
B. Unbalanced forces cause a change in motion.
200
The creator of the Laws of Motion?
Issac Newton
200
A toy car is traveling at 2 m/s and is going 15m away. How long will it take the toy car to travel this distance?
7.5 seconds
200
Vocab word: The force that acts directly against the direction of motion.
friction
200
18. Calculate the net force and select the description that describes the movement of the vase.
A. The vase will move up.
B. The vase will move to the right.
C. The vase will not move.
D. The vase will move down.
C. The vase will not move
Net force = 0
*All the forces are equal and are pulling in opposite directions, which also makes them balanced forces.
*Force is a push or pull, and has a unit of a Newton (N)
300
A racecar driver is going 40 km away and it will take 1.5 hours. What is his speed? Round the hundredths.
26.67 km/hr
300
3. Suppose a rollerblade racer finished a 145 meter race in 20 seconds. What is the average speed of the
racer? Round your answer to the nearest hundredths place.
Speed=Distance/Time
7.25 m/s
Speed= 145m/20s
300
What is acceleration measured in?
m/s2
300
Which surface would be easier to roller-skate on?
The football field or the inside of the classroom.
The classroom because the floor will have less friction.
300
Vocab Word: What describes how fast an object is moving?
Speed
400
Vocab word: What is a push or pull exerted on an object in order to change the objects position.
Force
400
Vocab Word: A change in a moving objects speed or direction is...
acceleration
400
Force = mass x acceleration is which of newton's laws
Newtons 2nd Law of Motion
force (N)
mass (kg)
acceleration m/s/s
400
Objects in motion tend to stay in motion and objects at rest remain at rest unless......
Unless acted on by a force,
400
What is the difference between speed and acceleration?
Acceleration is a change in speed.
500
Which statement best explains why the person and the raft moved in opposite directions?
A. Second law of motion
B. Action and reaction forces
C. Person wanted the raft to move
D. Force is the product of mass and acceleration
B. Action and reaction forces
500
Name 2 of the 4 types of friction
1. Sliding Friction
2. Rolling Friction
3. Static Friction
4. Fluid Friction
500
A roller coaster is traveling 2 m/s at the top of the track. At the bottom of the track, 3 seconds later, it is
traveling 40 m/s. What is the average acceleration? Round your answer to the nearest hundredths
place.
7.6 m/s2
a=(40 m/s-2m/s)/(5s)
500
During Science class, Ben and Dylan had to set up a demonstration to model one of Newton’s laws.
This is a photo of their demonstration. When Ben hit the index card with his finger, the penny fell into
the cup. What does the students’ demonstration illustrate?
A. A force causes a change in velocity and likewise a change in velocity generates a force. 2nd
Law of Motion
B. An object subjected to an external force will accelerate and that the amount of the acceleration
is proportional to the size of the force. 2nd Law of Motion
C. An object at rest stays at rest and an object in motion stays in motion at the same speed and in
the same direction unless acted upon by an unbalanced force. 1st Law of Motion
D. For every action in nature there is an equal and opposite reaction. In other words, if object A
exerts a force on object B, then object B also exerts an equal force on object A. 3rd Law of Motion
C. An object at rest stays at rest and an object in motion stays in motion at the same speed and in
the same direction unless acted upon by an unbalanced force. 1st Law of Motion
500
I accelerate at the starting line of a ski race for 10 seconds, reaching a velocity of 5 m/s. From the information given, what is the acceleration?
0.5 m/s2