WorksheetsSkills Check #4
Total questions: 20
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
A racecar is traveling around a racetrack at a constant speed of 150 km/hr. At which point on the track is the car accelerating?
a)
At point A
b)
At point B
c)
At point C
d)
The car is not accelerating.
2.
A racecar is traveling around a racetrack at a constant speed of 150 km/hr. At which points is the velocity of the car the same?
a)
Points A and B
b)
Points A and C
c)
Points B and C
d)
The velocity is not the same at any of the points.
3.
According to the above graph, what is the average speed of the car after 3 seconds?
a)
30 m/s
b)
15 m/s
c)
5 m/s
d)
3 m/s
4.
According to the graph above, what is the acceleration of the car between 2 seconds and 5 seconds?
a)
30 m/s2
b)
15 m/s2
c)
5 m/s2
d)
0 m/s2
5.
A student pushes a box with a force of 16N to the left. Another student pushes the same box from the opposite side with a force of 18N to the right. What will be the result?
a)
The box will move to the right with an 8 N force.
b)
The box will move to the right with a 2 N force.
c)
The box will move to the left with a 2 N force.
d)
The box will move to the left with an 8 N force.
6.
A marble is rolling east along the floor at a speed of 0.5 m/s. If a student exerted a force of 1 N towards the north, what would be the effect on the speed and direction of the marble?
a)
The speed of the marble would be unchanged, and the direction would change to the NE.
b)
The speed of the marble would increase, and the direction would change to the NE.
c)
The speed of the marble would be unchanged, and the direction would change to the N.
d)
The speed of the marble would increase, and the direction would change to the N.
7.
How many atoms of hydrogen are in ethanol, C2H5OH?
a)
0
b)
2
c)
5
d)
6
8.
When an object is acted upon by unbalanced forces, the object will always...
a)
Accelerate
b)
Continue in the same direction
c)
Continue at the same speed
d)
Come to a stop
9.
What is the chemical formula for Methane?
a)
CH8
b)
C8H4
c)
CH4
d)
C8H8
10.
Which of the following statements best describes how the speed & velocity of an object differ?
a)
Velocity is speed & direction, while speed has no direction
b)
Velocity is speed, while speed includes a direction
c)
Velocity is change in speed & speed is change in distance
d)
Velocity is change in distance & speed is change in velocity
11.
A car is going 70 mph north & then changes direction and starts going 70 mph NE, what happens?
a)
The speed of the car changes, but velocity stays the same.
b)
Both the speed and velocity of the car changes.
c)
Neither the speed nor the velocity of the car changes.
d)
The velocity of the car changes, but speed stays the same.
12.
How many total atoms are in Glucose, C6H12O6?
a)
3
b)
18
c)
24
d)
6
13.
Which of the following shows a completed PEN strategy for Sulfur?
a)
P=16
E=32
N=16
E=32
N=16
b)
P=16
E=16
N=16
E=16
N=16
c)
P=32
E=16
N=32
E=16
N=32
d)
P=16
E=16
N=32
E=16
N=32
14.
Which description best fits the motion of the graph?
a)
An airplane taking off and reaching a constant cruising speed.
b)
A roller coaster traveling up and down the first hill.
c)
A car traveling at a constant speed and then stopping to refuel.
d)
A roller coaster going down a hill and going up the next hill.
15.
How many protons are in one atom of Plutonium?
a)
94
b)
244
c)
244.064
d)
150
16.
A cube with a side length of 5cm, has a mass of 4,062g. What is the density of the cube?
a)
812.4 g/cm3
b)
800 g/cm3
c)
32.496 g/cm3
d)
4062 g
17.
Most of the volume of an atom is occupied by ____________.
a)
protons
b)
empty space
c)
a gas
d)
the nucleus
18.
What is the electrical charge of the nucleus of an atom that has 11 protons, 12 neutrons, and 11 electrons?
a)
-11
b)
-12
c)
+11
d)
+12
19.
Which of the following is the atomic mass represented in the diagram above?
a)
17
b)
16
c)
33
d)
32
20.
An unknown material has a mass of 443.9 grams and a volume of 23 cm3. What is the unknown material?
a)
Gold
b)
Aluminum
c)
Lead
d)
Ice
100 %
