WorksheetsScience 8 CA Review (12/9/16)
Total questions: 15
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
You run down the hallway at 10 meters per second toward the cafeteria.
Is this an example of speed, velocity, or acceleration?
Is this an example of speed, velocity, or acceleration?
a)
Speed
b)
Velocity
c)
Acceleration
2.
It takes you 10 minutes to run the mile in athletics.
a)
Speed
b)
Velocity
c)
Acceleration
3.
You turn the corner to make it to your next class before the tardy bell rings.
a)
Speed
b)
Velocity
c)
Acceleration
4.
As you are riding your bike, you have to come to a sudden stop to keep from hitting a dog that jumped out in front of you. As a result, you flip over the handlebar of the bike on to the ground.
Which of Newton's Laws does this situation describe?
Which of Newton's Laws does this situation describe?
a)
Inertia
b)
Force, Mass, Acceleration
c)
Action-Reaction
5.
You and your friend are skateboarding at the park. While standing on your skateboards, you push off each other and your skateboards move away from one another.
Which of Newton's Laws does this situation describe?
Which of Newton's Laws does this situation describe?
a)
Inertia
b)
Force, Mass, Acceleration
c)
Action-Reaction
6.
Your mom's car breaks down, and she asks you to push it while she steers to safety. When you try to push the car by yourself, it doesn't move, but when your brother gets out to help you push, it begins to move.
Which of Newton's Laws does this situation describe?
Which of Newton's Laws does this situation describe?
a)
Inertia
b)
Force, Mass, Acceleration
c)
Action-Reaction
7.
The diagram shows a section of a hydroelectric power plant. In this power plant, the form of energy involved in turning the turbine is —
a)
Potential
b)
Solar
c)
Mechanical
d)
Thermal
8.
Look at the drawing. The most complete description of the energy conversions taking place in the campfire is that —
a)
thermal energy is converted to chemical energy
b)
chemical energy is converted to radiant energy
c)
chemical energy is converted to thermal energy
d)
chemical energy is converted to thermal and radiant energy
9.
In a hydroelectric power plant, moving water is used to create electricity. What type of energy does the water have before it goes down the waterfall?
a)
Potential
b)
Kinetic
c)
Mechanical
d)
Electrical
10.
Which segment of the line on the graph represents the time period when the object had the greatest average speed?
a)
A
b)
B
c)
C
d)
D
11.
A volleyball player uses 30 joules of work to spike a ball 15 meters. With what force did the ball hit the ground?
a)
2 N
b)
450 N
c)
15 N
d)
45 N
12.
Each of the graphs represents an object moving in a single direction. Unbalanced forces acted on the object in which graphs
a)
1 and 2
b)
2 and 3
c)
3 and 4
d)
1 and 4
13.
During training, a track runner completed the 400 meter dash in 50 seconds. What was the runner’s speed?
a)
450 m/s
b)
200 m/s
c)
4 m/s
d)
8 m/s
14.
You keep your sports equipment on a shelf in the garage. Four balls sit on the shelf — a ping-pong ball, a basketball, a softball, and a bowling ball. Which of these balls has the greatest potential energy?
a)
Ping-pong ball
b)
Basketball
c)
Softball
d)
Bowling Ball
15.
The diagram shows several forces acting in different directions on an object. If the forces acting on the object are balanced, what is the value of the unknown force?
a)
0 N
b)
5 N
c)
7 N
d)
12 N
100 %
