WorksheetsMotion, Force, and Models - I-4
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
Models must be physical objects.
a)
True
b)
False
2.
Models are always smaller than the objects they represent.
a)
True
b)
False
3.
Models are used to test ideas about how things work.
a)
True
b)
False
4.
Models are communicated through words and drawings.
a)
True
b)
False
5.
Once a model is created, it never changes.
a)
True
b)
False
6.
Fossils provide evidence to construct a model of ____.
a)
plants and animals that populated an area 50 years ago
b)
the event that made dinosaurs extinct
c)
plants and animals that lived long ago
d)
the relationship between the Sun, Moon, and Earth
7.
Engineering design begins by identifying a problem to solve.
a)
True
b)
False
8.
Engineers rarely work together, they prefer to work alone.
a)
True
b)
False
9.
The success of a solution is determined by how well the design meets the criteria set at the beginning of the project.
a)
True
b)
False
10.
Possible design solutions to a problem are limited by available resources (money and materials, for example).
a)
True
b)
False
11.
A racecar travels down a slope and stops at a wall. Where will it have the most potential energy?
a)
At the top of the slope.
b)
As it travels down the slope.
c)
At the bottom of the slope.
d)
When it stops at the wall.
12.
A racecar travels down a slope and stops at a wall. Where will it have the most kinetic energy?
a)
At the top of the slope.
b)
As it travels down the slope.
c)
At the bottom of the slope.
d)
When it stops at the wall.
13.
Force is ____.
a)
what keeps an object moving
b)
a test which all but one variable is kept the same
c)
a push or pull
d)
anything you can change in an experiment that might affect the outcome
14.
Gravity is ____.
a)
what keeps an object moving
b)
a force that acts between two objects
c)
a test which all but one variable is kept the same
d)
a push or pull
15.
Momentum is ____.
a)
what keeps an object moving
b)
a force that acts between two objects
c)
a push or a pull
d)
anything you can change in an experiment that might affect the outcome
16.
A variable is ____.
a)
a force that acts between two objects
b)
a test in which all but one variable is kept the same
c)
a push or a pull
d)
anything you can change in an experiment that might affect the outcome
17.
A controlled experiment is ____.
a)
what keeps an object moving
b)
a force that acts between two objects
c)
a test in which all but one variable is kept the same
d)
anything you can change in an experiment that might affect the outcome
18.
A cat chases a mouse into a hole in the wall. The cat crashes against the wall with a force of 50 N. The wall doesn't move. How much force does the wall exert when the collision happens.
a)
The wall doesn't exert a force because it is attached to the floor.
b)
More than 50 N
c)
50 N
d)
Less than 50 N
19.
A golf ball and a baseball roll down the same ramp. Which one will roll faster?
a)
The golf ball
b)
The baseball
c)
They will roll at the same speed.
20.
A golf ball and a marble roll down the same ramp. Which one will roll faster?
a)
The golf ball
b)
The marble
c)
They will roll at the same speed.
21.
You place pennies under a flip stick and measure how far a cork will fly when the flip stick is compressed and released. What is the dependent variable in this experiment?
a)
The number of pennies
b)
The distance the cork flies
c)
The length of the flip stick
d)
The size of the cork
22.
You place pennies under a flip stick and measure how far a cork will fly when the flip stick is compressed and released. What is the independent variable in this experiment?
a)
The number of pennies
b)
The distance the cork flies
c)
The length of the flip stick
d)
The size of the cork
23.
Inez pushes on a cart with 600 N of force. Bernie pushes on the other side of the cart with 800 N of force. What happens to the cart?
a)
It will remain exactly where it is.
b)
It will move towards Inez.
c)
It will move towards Bernie.
d)
It will begin to move toward Inez, but then stop.
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