NEW
Font size
WorksheetsGENERAL PHYSICS 1&2
Total questions: 50
Worksheet time: 50mins
An object at rest will _______ if no outside forces are applied.
Stay at rest
Increase Velocity
Decrease Mass
what is the constant value of gravity ?
9.8 m/s^2
9.8 m/s
10 m/s^2
10 m/s
how many significant values are in 12. 00030?
8
6
5
How is the number 0.009834 expressed in scientific notation?
9.834 x 10^4
9.834 x 10^-4
9.834 x 10^3
9.834 x 10^-3
what is the third law of motion ?
Law of inertia
Law of acceleration
Law of intersection
Law of interaction
Accuracy is how close a measurement is to the correct value for that
measurement
TRUE
FALSE
scalar is a physical quantity characterized by
both magnitude and direction
TRUE
FALSE
what is a SI unit of speed ?
m/s^2
m/s
miles/hour
kg
Measurement is made up of a number and
a unit.
TRUE
FALSE
Any number that is used to describe a physical phenomenon quantitatively is called:
Operational definition
Physical Quantity
Scientific Notation
Derived Quantity
The following are fundamental quantities except:
Lenght
Mass
Time
Acceleration
Since 1960 the system of units used by scientists and engineers is the “metric system”, which is officially known as SI units. What does SI stand for in French term?
International System
System International
Simple International
Systeme International
Convert the values to the indicated units 0.0056 km to mm
56,000
5,600
560
56
Identify how many significant figures are in this quantity 24,300 km?
3
4
5
3,4,5
What significant figure rule supports (24,300 km)?
Zeroes at the end of a number that does not contain a decimal point may or may not be significant
Zeroes at the end of a number that contains a decimal point are always significant
Zeroes at the beginning of a number (used just to position the decimal point) are never significant
Zeroes between nonzero digits are always significant.
Convert 57,000,000 in scientific notation:
5.7 x 107
5.7 x 10-7
5.7 x 106
5.7 x 10-6
What is the base unit and symbol of Luminous intensity?
Mole, mo
Kelvin, K
Candela, Cd
Meter, m
Which of the following refers to how closely a measured value agrees with the correct value?
Accuracy
Precision
Measurement
Quantity
If you weigh a given substance five times, and get 3.2 kg each time, then your measurement is:
Accurate
Precise
Undefined
None of the Choices
You perform an experiment to measure the temperature at which the water boils. The true value of temperature where water boils is 67 °C. You set up five containers of water and heat each one. At the instant the water boils you measured the temperature and got the following results:
35°C 35°C 35°C 35°C 35°C
High precision but low accuracy
High precision and high accuracy
Low precision and low accuracy
High accuracy but low precision
Physics is termed as __________________ and it is largely a science of measurement. Physicists observe the phenomena of nature and try to find and invent patterns and principles that relate these phenomena.
Experimental Science
Social Science
Biological Science
Environmental Science
Which of the following quantities has units of a velocity?
20 m East
20 m/s
978 m/s2 south
143 m/s south
You drive 7.0 km at 80 km/h and then another 7.0 km at 120 km/h. What will be your average speed over the 14 km drive?
less than 50 km/h
more than 50 km/h
equal to 50 km/h
maybe 50 km/h
Which of the following situations is impossible?
An object has velocity directed east and acceleration directed west.
An object has velocity directed east and acceleration directed east.
An object has constant non-zero acceleration and changing velocity.
An object has constant non-zero velocity and changing acceleration.
An object moving in the +x direction experiences an acceleration of +3.0 m/s2. Which of the following best describe it?
travels 3.0 m in every second.
is traveling at 3.0 m/s.
is decreasing its velocity by 3.0 m/s every second.
increasing its velocity by 3.0 m/s every second.
Under what condition is average velocity equal to the average of the object's initial and final velocity?
This can only occur if there is no acceleration.
This can only occur if the acceleration is constant
This can occur only when the velocity is zero.
The acceleration must be constantly increasing
A racing car accelerates uniformly from rest along a straight track. This track has markers spaced at equal distances along it from the start. The car reaches a speed of 250 km/h as it passes marker 2. Where on the track was the car when it was traveling at half this speed that is at 125 km/h?
Before Marker 1
At marker 1
Between Marker 1 and 2
At Marker 2
A 300-kg rock and 550-kg rock are dropped from the same height and experience no significant air resistance. If it takes the 550-kg rock a time T to reach the ground, what time will it take the 10-kg rock to reach the ground?
T
2T
3T
1/2T
An object is moving with constant non-zero acceleration in the +x direction. What will be the position versus time graph of this object?
A horizontal straight line.
A vertical straight line.
A zigzag line
A parabolic curve
If the velocity versus time graph of an object is a horizontal line, the object is
moving with zero acceleration
moving with constant non-zero acceleration
at rest
moving in increasing speed
A car is traveling at 46.0 m/s when the driver suddenly applies the brakes, causing the car to slow down with constant acceleration. The car comes to a stop in a distance of 220 m. How fast was the car moving when it was 110.0 m past the point where the brakes were applied?
18.4 m/s
32.5 m/s
43.2 m/s
22.7 m/s
Human reaction time is usually greater than 0.10 s. If your friend holds a ruler between your fingers and releases it without warning, how far can you expect the ruler to fall before you catch it, assuming negligible air resistance?
at least 3.1 cm
at least 4.9 cm
at least 6.8 cm
at least 9.8 cm
Which of the following graphs represent an object having zero acceleration?
The unit m3 is used to express
length
mass
volume
density
The abbreviations for units of length in order from smallest to largest are
m, cm, mm, km
mm, m, cm, km
km, mm, cm, m
mm, cm, m, km
.000457
How many significant figures are there in the image?
3
1
0
2
Decide the number of significant figures: 409.10
3
4
5
6
The first length measured in a laboratory experiment is 2.5 + 0.1 m and the second length 3.4 + 0.1 m. What is the uncertainty of the sum of the lengths?
0.1 m
0.2 m
0.3 m
0.4 m
