Worksheetsmi-star 6.4
Total questions: 23
Worksheet time: 29mins
Six students are playing tug-of-war. A ribbon is tied tightly on the rope to mark the middle. The ribbon is staying in the middle and not moving. How do the forces applied to the rope affect the motion of the rope and ribbon.
The ribbon will move to the right.
The ribbon will move to the left.
The ribbon will not move in either direction.
There is not enough information to tell.
Seven students are playing tug-of-war, three students on one side and four students on the other side. A ribbon is tied tightly on the rope in the middle. How will the forces applied effect the motion of the rope and ribbon?
The ribbon will move toward the side with three students.
The ribbon will move toward the side with four students.
The ribbon will not move either direction.
There is not enough information to predict how the ribbon will move.
In a game of tug-of-war, how are the forces on the rope balanced?
When the force applied to one side is greater than the force applied to the other.
When the forces applied on both sides are equal.
When the forces are all in the same direction.
There is not enough information to tell.
You have two different size boxes, made of the same material, placed on a smooth, flat, slippery surface. The blocks are not moving when placed on the surface, but move easily when force is applied. Which block will have a greater change in motion when force is applied?
The block with more mass.
They will both have the same change in motion.
The block with less mass.
There is not enough information to tell.
You have two different size boxes, made of the same material, placed on a smooth, flat, slippery surface. The boxes are not moving when placed on the surface, but move easily when force is applied. If more force is applied to the larger box. How would this affect the change in motion of the boxes?
The change in motion will increase.
The change in motion will decrease.
The change in motion will be the same.
There is not enough information to tell.
If a model of a sailboat on water shows the force of the wind and the force of the water as being equal and in opposite directions. We can conclude:
The sailboat will speed up for a short time and then move at a constant speed.
The sailboat will slow down and then stop.
The sailboat will move at constant speed the entire time.
The sailboat will speed up the entire time.
If a model of a sailboat shows that the force of the wind acting on it is greater than the force of the water and these forces are in opposite directions. We can conclude that:
The sailboat will speed up for a short time and then move at a constant speed.
The sailboat will slow down and then stop.
The sailboat will move at a constant speed the entire time.
The sailboat will speed up the entire time.
Forces acting on an object are unbalanced when:
They are equal and in the opposite direction.
They are not thinking right.
They agree with me.
They are unequal or in the same direction.
Forces acting on an object are balanced when:
They are unequal in magnitude and similar in direction.
They agree with me.
They are equal in magnitude and opposite in direction.
They are normal.
What is an independent variable.
The thing that is changed in an investigation.
The thing that remains the same in an investigation.
The thing that is measured in an investigation.
There is not enough information to tell.
What is a dependent variable in an investigation?
The thing that is unchanged.
The object that is being tested.
The measured results on the variable being tested.
There is not enough information to tell.
What is a constant in a scientific experiment?
The variable that remains unchanged during an experiment.
The results of what is being tested in a scientific experiment.
The variable that is being tested.
There is not enough information to tell.
If a rock is dropped on a box of cucumbers and then stays in a stable position on top of the box. Which of the following describes the forces on the box of cucumbers at this time?
There are no forces acting on the box of cucumbers.
The only force acting on the box of cucumbers is applied by the rock.
There are many forces acting on the box of cucumbers. These forces are balanced.
There are many forces acting on the box of cucumbers. These forces are unbalanced.
A bowling ball is rolled at the same bowling pin, at different times. The first roll moves the pin 50cm and the second roll moves the pin 100cm. When the ball and the pins collide, are the forces on the bowling pin balanced or unbalanced?
Both are balanced.
Both are unbalanced.
The first is balanced and the second is unbalanced.
The first is unbalanced and the second is balanced.
A bowling ball is rolled at the same bowling pin, at different times. The first roll moves the pin 50cm and the second roll moves the pin 100cm. This means that the second roll must have applied more force to the bowling pin than the first roll. Which of the following could describe why the second roll applied more force?
The ball in the second roll could have had more mass than the ball in the first roll.
The ball in the second roll could have been moving faster than the ball in the first roll at the time of the collision.
Both 1 and 2
Neither 1 or 2
If you were an engineer designing a bike helmet. Which of the following are criteria you might have:
Would like the helmet to be light.
Survive a drop of three meters
Must be able to adjust the size
Be as comfortable as possible.
If you were an engineer designing a bike helmet. Which of the following are constraints you might have:
Would like the helmet to be light
Must be able to adjust the size
Survive a drop from three meters
Be as comfortable to wear as possible
To test the new helmet design, it was dropped from a height of three meters onto a hard floor. The helmet bounces off the floor, but is undamaged. Which statement correctly describes the forces involved in this collision at the moment of impact?
The floor applies a force to the helmet that is equal to the force the helmet applies to the floor.
The floor applies a force to the helmet that is less than the force the helmet applies to the floor.
The force applies a force to a helmet that is greater than the force the helmet applies to the floor.
There is not enough information to tell.
What is a synonym for the word magnitude?
vector
weakness
strength
vigor
What is the equation for force?
m=f x a
f= m x a
a= m x f
x= y x z
What are criteria in a scientific investigation?
The outcome of the investigation.
The limitations of the investigation.
The goals of the investigation.
The factors of the investigation.
What are the constraints in a scientific investigation?
The inputs in an investigation.
The goals of an investigation.
The outcome of an investigation.
The limitations, rules, or "must haves" of an investigation.
We know forces acting on an object are unbalanced when:
everything is stable.
everything is going crazy.
there is motion.
it is still.
