Force and Motion 1
Force and Motion 2
Force and Motion 3
Electricity
Magnetism
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?
Gas
Gravity
Friction
Molecules
Gravity
100
When two objects have different electric charges they _____________ each other.
What is attract?
100
Which object would be attracted to a magnet?
a penny
aluminum foil
rubber stamp
iron fillings
What is iron fillings?
200
Which of the following statements are true?
Balanced forces cause a change in motion.
Unbalanced forces cause a change in motion.
Forces do not effect the change in motion.
Unbalanced forces cause a change in motion.
200
The creator of the Laws of Motion?
Issac Newton
200
The force of gravity on the surface of Mercury is much less than on Earth. A rock has a weight of 100
newtons on Earth. What do you know about the weight of the rock on Mercury?
A. The rock will weigh exactly 100 Newtons.
B. The rock will weigh more than 100 Newtons.
C. The rock will weigh less than 100 Newtons.
D. There is not enough information to know if the rock weighs the same, more, or less on Mercury.
C. The rock will weigh less than 100 Newtons.
200
When you rub two balloons together ____________ can flow from one balloon to the other.
What is electrical charges?
200
A bar magnet has two poles. What are they called?
What is north and south?
300
D. A 10 N force applied to a stationary wall.
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
Which object would require the most force to move?
a tennis ball
a baby
a car
a cell phone
car
300
The invention of the___________ showed that Earth acts like a giant magnet.
What is the compass?
300
A north pole of one magnet will ______ the south pole of another magnet.
What is repel?
400
What is a push or pull exerted on an object in order to change the objects position.
What is Force?
400
A change in a moving objects speed or direction is...
What is acceleration?
400
Force = mass x acceleration is..
Newtons 2nd Law of Motion
force (N)
mass (kg)
acceleration m/s/s
400
You should never use electrical appliances when you are wet because it could cause an _________ shock.
What is electric?
400
The space around a magnet which would attract magnetic substances is called the ______________
What is the magnetic field?
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
This graph shows the acceleration of a racehorse taking off from the starting gate. By how much did the
horse’s speed increase between 4 seconds and 6 seconds?
A. 20 m/s
B. 27 m/s
C. 45 m/s
D. 65 m/s
B. 27 m/s
500
A racecar moving around the track. Is it balanced or unbalanced?
What is unbalanced?
500
How could you observe an electric charge?
What is rub an object with a piece of fabric and hold it next to a strip of paper.
500
We can use ________ to show the direction of a magnetic field.
What is a compass?