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Q 1/32
Score 0
a change in the velocity of an object over time
30
acceleration
Q 2/32
Score 0
a device that is a combination of two or more simple machines
30
compound machine
32 questions
Q.
a change in the velocity of an object over time
1
30 sec
Q.
a device that is a combination of two or more simple machines
2
30 sec
Q.
the length between two places
3
30 sec
Q.
the ratio between the work done by a machine and the work put into it
4
30 sec
Q.
the ability to do work
5
30 sec
Q.
a push or pull exerted by one object on another, possibly causing a change in motion
6
30 sec
Q.
a force that opposes the motion of an object in contact with a surface
7
30 sec
Q.
the pivot point in a lever
8
30 sec
Q.
a straight, slanted surface that can multiply an effort force
9
30 sec
Q.
energy of motion
10
30 sec
Q.
a physical law that states that energy may change form but it cannot be created or destroyed
11
30 sec
Q.
a simple machine consisting of a rigid bar and a pivot point
12
30 sec
Q.
the number of times a simple machine multiplies an effort force
13
30 sec
Q.
the mass of an object multiplied by its velocity
14
30 sec
Q.
a change in an object's position compared to fixed objects around it
15
30 sec
Q.
a physical law stating that an object at rest tends to stay at rest and an object moving in a straight line at a constant speed tends to continue moving that way
16
30 sec
Q.
a physical law stating that the planets, the stars, and the Sun all exert gravitational forces
17
30 sec
Q.
a physical law that states that an object's acceleration depends on the object's mass and the amount of net force applied to it
18
30 sec
Q.
a physical law that states that for every action there is an equal and opposite reaction
19
30 sec
Q.
the Location of an object compared with things around it
20
30 sec
Q.
the energy stored in an object or a material
21
30 sec
Q.
the amount of work done per unit of time
22
30 sec
Q.
a grooved wheel that turns by the action of a rope in the groove
23
30 sec
Q.
a simple machine made of an inclined plane wrapped around a central bar that can multiply an effort force
24
30 sec
Q.
a device with few, if any, moving parts that makes it easier to do work
25
30 sec
Q.
how fast an object's position changes with time at any given moment
26
30 sec
Q.
the kinetic heat energy in a substance
27
30 sec
Q.
a description of a moving object's speed and direction
28
30 sec
Q.
an inclined plane that changes the direction of an applied force
29
30 sec
Q.
the state of being without weight
30
30 sec
Q.
a simple machine that consists of a wheel that applies an effort force and a smaller axle that produces an output force
31
30 sec
Q.
what is necessary for a force to move an object through a distance; work is calculated by multiplying the force applied to an object by the distance the object moves
