WorksheetsPhysics Midterm Review Part B
Total questions: 40
Worksheet time: 43mins
In a classroom lab, a Physics student walks through the hallways making several small displacements to result in a single overall displacement. The listings below show the individual displacements for student B. Simplify the collection of displacements into a pair of N-S and E-W displacements. Then use Pythagorean theorem to determine the overall displacement.
132 m Northeast
40 m Southwest
76 m southwest
76 m Northeast
Which is the Resultant? (Hint: The Resultant starts at the tail of the 1st vector and end at the head of the last vector)
A
B
C
Brian runs 12 km West and then Runs 9 Km South to get to the store. What is the magnitude of the resulting displacement?
R = 8 km
R = 17 km
R = 15 km
R = 14 km
Use the Pythagorean Theorem to determine the magnitude of the following resultant.
R = 11 m
R = 12 m
R = 13 m
R = 17 m
Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?
the feather
the metal bolt
They would hit the ground at the same time.
They would be suspended (floating) in a vacuum.
An object free falls for 3.5 seconds. How far does it fall?
Suppose Lemming A runs off the edge of the cliff at 2 m/s and Lemming B runs off the edge at 1 m/s. Which will hit the ground first?
A
B
Both at the same time
Suppose Lemming A runs off the edge of the cliff at 2 m/s and Lemming B runs off the edge at 1 m/s. Which will hit the ground farther from the base of the cliff?
A
B
Both at the same distance
In the absence of air resistance, the angle at which a thrown ball will go the farthest is?
90°
30°
60°
45°
A cannonball is launched horizontally at 50 m/s from an 80 m tall cliff. How far will it go (horizontally) before hitting the ground?
100 m
200 m
400 m
800 m
What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?
5 m/s2
17.63 m/s2
10 m/s2
8.81 m/s2
A 10kg car travels at a constant speed of 20.0 m/s around a horizontal circular track. Which diagram correctly represent the direction of the car's velocity (v) and the direction of the centripetal force (Fc) acting on the car at a particular moment?
An automobile you are riding in suddenly stops, but you continue to go forward.
Newton's
1st
Law of Motion
Newton's
2nd
Law of Motion
Newton's
3rd
Law of Motion
A skater pushes another skater forward, but the one pushing moves backwards.
Newton's
1st
Law of Motion
Newton's
2nd
Law of Motion
Newton's
3rd
Law of Motion
The harder you hit a baseball, the faster it accelerates.
Newton's
1st
Law of Motion
Newton's
2nd
Law of Motion
Newton's
3rd
Law of Motion
If a force of 50 N is exerted on two balls, one with a mass of 5 kg and the other with a mass of 10 kg, which ball will have the greater acceleration?
The one with a mass of 10 kg will have the greatest acceleration.
The one with a mass of 5 kg will have the greatest acceleration.
They will both accelerate at the same rate.
A bike accelerates at 10 m/s2 when a force of 50N is applied. What is the mass of the bike and its rider?
25 kg
200 kg
20 kg
5 kg
Calculate the net force for the diagram.
800 N down unbalanced
600N down balanced
400 N down unbalanced
400 N up unbalanced
The amount of matter in an object
Weight
Mass
Volume
Circumference
Weight is _________.
the quantity of matter in an object.
the measure of an object's inertia.
the force exerted by gravity on an object's mass.
equal to the mass of an object.
An object has a weight of 230N on the moon where the acceleration of gravity is 1.6m/s/s. What is the mass of the object?
299kg
0.007kg
141.9 kg
233 kg
If the mass of either m1 or m2 is increased then the force of gravitation between them will...
increase
decrease
stay the same
Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.
2.96x10-9N
3.00x10-6N
2.22x10-9N
2.23x10-8N
Which two quantities are needed to calculate momentum?
(a)
What is the momentum of a 55kg person running at 7 m/s? Do not include units
True or false: The total momentum before and after an elastic collision remains the same.
true
false
A ball collides with another stationary ball. If they bounce off each other, what type of collision occurred?
Elastic Collision
Inelastic Collision
A football player gets ready for a field goal and kicks the ball with an impulse of 20Ns due to a force of 250N. What is the time the ball is in contact with the kicker's foot? (Hint: Impulse = Change in Momentum)
0.08s
12.5s
5000s
A car with a mass of 2000kg is traveling at 10m/s and collides with a second car of mass 1500kg traveling at -15m/s. If the collision is perfectly inelastic, what is the velocity of the two cars after the collision?
-0.7 m/s
-1.4 m/s
5.7 m/s
-6.4 m/s
Two objects collide and stick together, what type of collision occurred?
Elastic Collision
Inelastic Collision
