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7G UNIT 1
Test Description: Speed Density Types of Energy Energy Transformation Work
Instructions: Answer all questions to get your test result.
1) What is the formula for speed?
A
S= D/T
B
S= DxT
C
S= T-D
D
S= T+D
2) A car travels 50 miles for 2 hours. What is the car's average speed?
A
25 mph
B
25 kmh
C
25 meters
D
25 m/s
3) What is the formula for DENSITY?
A
D=M-V
B
D=M+V
C
D=MxV
D
D=M/V
4) What is density of an object with a mass of 10 grams and a volume of 2 ml?
A
5 g/ml
B
8 g/ml
C
12 g/ml
D
20 g/ml
5) What is the speed of an object in mph if it travels 10 miles in 30 mins?
A
10 mph
B
20 mph
C
300 mph
D
.33 mph
6) What is the speed of a car that travels 80 meters in 10 seconds?
A
10 m/s
B
90 m/s
C
8 m/s
D
800 m/s
7) Which of the following objects float on water based on their densities?
A
Object B Density = .50 g/ml
B
Object C Density = 100 g/ml
C
Object A Density = 1.5 g/ml
D
Object D Density = 2 g/ml
8) A car travels for 5 hours and gets 500 kilometers north. What was its average speed?
A
100 mph
B
505 km/h
C
505 mph
D
100 km/h
9) What is the Density of water?
A
1.5g/ml
B
10g/ml
C
1g/ml
D
.1g/ml
10) In order to find speed you take Distance and ____________ by Time.
A
Divide
B
Add
C
Multiply
D
Subtract
11) What type of energy does a batter represent?
A
Radiant Energy and Light Energy
B
Chemical Energy and Kinetic Energy
C
Radiant Energy and Electrical Energy
D
Chemical Energy and Potential Energy
12) Which of the following represents work being done?
A
Holding a box above your head
B
Pushing up against a wall
C
Lifting and placing a book on a bookshelf
D
Pulling on a large rock that is not moving
13) What type of energy transformation occurs during Photosynthesis?
A
Electrical Energy to Kinetic Energy
B
Radiant Energy to Chemical Energy
C
Light Energy to Electrical Energy
D
Chemical Energy to Radiant Energy
14) The ___________ the position of an object, the more Potential Energy.
A
Longer
B
Higher
C
Lower
D
Bigger
15) Which of the following does a person running NOT represent?
A
Electrical Energy
B
Mechanical Energy
C
Kinetic Energy
D
Thermal/Heat Energy
16) Can the Sun represent more than one type of energy?
A
MAYBE
B
IDK (Hint: This is not the answer!)
C
NO
D
YES
17) In order for something to count as WORK you must have.......
A
Photosynthesis
B
Motion
C
Energy Transformation
D
Energy
18) What is Potential Energy
A
Work
B
Energy in Motion
C
Stored Energy
D
Energy from the Sun
*select an answer for all questions
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