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Motion Review
Motion Review
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8th Grade Motion Review
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
What does this demonstrate?
Low accuracy low precision
Low accuracy high precision
high accuracy high precision
High accuracy low precision
2
If a sailfish can accelerate at a rate of 5 m/s
2
, how long will it take for the fish to swim at a speed of 15 m/s?
20 seconds
45 seconds
3 seconds
.33 seconds
3
In physics, when considering a viewer's position to observe an object in motion, we are looking from a specific:
Point of View
Positional Stance
Frame of Reference
Standpoint
4
Force is equal to:
Mass divided by acceleration
Mass times velocity
Distance over time
Mass times Acceleration
5
Momentum is equal to:
Distance over time
Mass times velocity
Mass times Acceleration
Mass divided by acceleration
6
If you need to measure the amount of time it takes a car to go down a ramp, you need:
PG A
PG B
PG A and B
7
Which of Newton's laws states that, for every action, there is an equal and opposite reaction?
1st
3rd
2nd
8
To convert from centimeters to meters, you need to:
Divide by 1000
Divide by 100
Multiply by 1000
Multiply by 100
9
Velocity is equal to:
Distance over time
Mass times velocity
Mass divided by acceleration
Mass times Acceleration
10
What is the unit for acceleration?
ms
kg * (m/s)
m/s2
m/s
11
What is the unit for momentum?
Kg*m/s2
kg*(m/s)
m/(s*kg)
kg/M/s
12
If we want to measure how the type of dorito affects how many chips are in the bag, what should be constant?
Type of chip
How many chips
Volume of bag
The size of the bag
13
Which part of the graph represents a point where the car is decelerating?
A
B
C
D
14
If we want to measure how the type of dorito affects how many chips are in the bag, what is the independent variable?
The size of the bag
Volume of bag
How many chips
Type of chip
15
Velocity can be negative.
True
False
16
Acceleration cannot be negative.
False
True
17
What is acceleration due to gravity?
10 mph
9.8 m/s2
5 m/s
16 m/s2
18
The difference between speed and velocity is speed has no:
time
direction
movement
distance
19
Which part of the graph represents a point where the car is moving at a constant speed?
C
B
A
D
20
What is it called when an object's velocity increases?
Speed
Deceleration
Acceleration
Momentum
21
Two people fall from a plane. One has a parachute. The other does not. Which is true?
Gravity pulls on the one w/o a parachute more.
Gravity's effect is constant on both.
The one with w/o a parachute better be able to fly.
Gravity pulls on the one with a parachute more.
22
Which part of the graph represents a point where the car is accelerating?
A
D
B
C
23
Which part of the graph represents a point where the car is not moving?
B
A
D
C
24
If we want to measure how the type of dorito affects how many chips are in the bag, what is the dependent variable?
Type of chip
How many chips
The size of the bag
Volume of bag
25
How do you calculate acceleration?
(V2 - V1) / t
(V1 - V2) / t
M * (V2 - V1)
V2 * t
26
What is the standard unit we use for velocity?
m/s
km per hour
m/min
mph
27
A 50,000 kg submarine is traveling at a velocity of 2 m/s. What is its momentum?
52,000
100,000
25,000
1,000,000
28
What is the average velocity of a person that drives a car 1000 meters in 100 seconds?
10 m/s
1000 m/s
.1 m/s
1 m/s
29
What is the word for an object's tendency to remain in its current state (whether in motion or rest)?
Inertia
Acceleration
Momentum
Motion
30
To convert from minutes to seconds, you need to:
Divide by 60
Multiply by 100
Divide by 100
Multiply by 60
