Units and Conversions
Motion
Using Equations
Trig for Physics
Random Physics Facts
100
Convert 500 grams to kilograms.
0.5 kg
100
If a person walks 4 blocks north and then 2 blocks south...
1) What is the total distance traveled?
2) What is their displacement from their starting position?
1) 6 blocks
2) 2 blocks north
100
An object's motion can be described by the following equation: vf 2 = vi2+ 2*a*d
How far will a car travel if it starts from rest and accelerates at a constant rate of 4 m/s2 until it reaches a final velocity of 20 m/s?
50m
100
What is the length of QR?
5cm
100
The unit of force is named after what scientist?
Newton
100
Write 358,000 in scientific notation.
3.58 x 105
100
If a person walks 4 blocks north and then 2 blocks east...
1) What is the total distance traveled?
2) What is their displacement from their starting position?
1) 6 blocks
2) 4.472 blocks NE
100
Torque is the amount of force applied to cause an object to rotate about its axis and is represented by the equation:
t = f * d.
If a person exerts a 50N force on a door and the door experiences 12.5 Nm of torque, then what distance away from the pivot was the force exerted?
0.25 m
100
What is angle P (in degrees)?
22.62 degrees
100
What is the acceleration due to gravity on Earth (round to one decimal place)?
9.8 m/s/s
100
Write 9.66 x 10-6 in standard notation.
0.00000966
100
A car is driving at 20 m/s and then accelerates at a constant rate of 2 m/s/s for 5 seconds. What is their new speed after the 5 seconds?
30 m/s
100
An object's motion can be described by the following equation: vf 2 = vi2+ 2*a*d
What is the final velocity of a car that has an initial velocity of 2 m/s and then accelerates at a constant rate of 0.5 m/s2 over 25m?
5.385 m/s
100
What is the length of p?
47.86 m
100
What is the SI Unit for the amount of a substance (Hint: think of chemistry)
Moles
100
Convert 5 inches to kilometers
(1.61 km = 1 mile & 1 mile = 5280 ft)
1.27 x 10-4
100
A car is driving at 24 m/s and decelerates at a constant rate of 4 m/s/s. How long (in seconds) will it take for the car to stop?
6 sec
100
The kinetic energy of an object in motion can be expressed by the equation:
KE = 0.5*m*v2
What is the velocity of a 2kg object that has a total kinetic energy of 50J?
7.07
100
What is the length of the left side of the triangle?
32.64 m
100
What is the speed of light in m/s?
3 x 108 m/s
100
Convert 50km to cm.
5,000,000 cm
100
A person has a mass of 45kg on Earth (g = 10 m/s/s). What is their (a) mass and (b) weight (in N) on a planet with an acceleration due to gravity (g) = 2 m/s/s?
Mass = 45 kg
Weight = 90 N
100
The gravitational potential energy of an object is represented by the equation:
PE = m*g*h
A 10kg alien at a height of 30m above the ground has 1000J of potential energy. What is the acceleration due to gravity (g) on their planet?
3.33 m/s/s
100
What is the normal force that the ramp is exerting on the block? (Listen to Hint)
23.02 N
100
Rank the following electromagnetic waves in increasing order of energy:
a) Radio b) UV c) Infrared d) Visible Light e) X-Rays
Lowest: Radio, Infrared, Visible, UV, X-Rays
100
What is the SI Unit for each of the following:
1) Mass 2) Time 3) Distance 4) Force
kg
s
m
N
100
An outfielder throws a baseball directly upwards with an initial velocity of 15m/s. What is its velocity when...
1) It reaches its peak height?
2) It reaches the same height on the way down that they released it from?
Ignore air resistance and use g = 10 m/s/s
1) 0 m/s
2) 15 m/s
100
Centripetal force is represented by the equation:
Fc = m * ac
Centripetal acceleration is represented by the equation:
ac = v2 / r
What is the centripetal force of a 2 kg object travelling at a velocity of 10 m/s around a circle with a radius of 30m?
6.67 N
100
If the ramp is frictionless, then what is the net force on the block? (Listen to Hint)
8.38 N
100
Describe a scenario where a force is exerted on an object but no work is done (based on the physics definition of work).
The object doesn't move