In this image, what is the starting speed for the Blue Chair?
1 m/s
3 m/s
12 kg
4 m/s
In this image, what is the ending speed for the Blue Chair?
4 m/s
1 m/s
3 m/s
12 kg
In this image, what is the change in speed for the Blue Chair?
12 kg
4 m/s
3 m/s
1 m/s
For the Blue Chair, a force caused what type of change in velocity?
start moving
stop moving
change direction
speed up
slow down
For the Blue Chair, a force must have been
in the same direction
in the opposite direction
there was no force
In this image, what is the change in speed for the Purple Sweater Skier?
0 m/s
6 m/s
12 m/s
For the Purple Sweater Skier, a force must have been
in the same direction
in the opposite direction
there was not force
These are curling stones from a game played on ice.
Which stone had the greater change in velocity
Blue Stone
Orange stone
These are curling stones from a game played on ice.
Which stone had the greater force applied?
Blue Stone
Orange stone
A _______ force can cause a greater change in velocity.
weaker
stronger
Claim 1: If this pod went in the opposite direction because of the thrusters, the thrusters would have exerted ____________ the thrusters in other missions
a force weaker than
a force greater than
an equal force to
Claim 2: If this pod crashed into the space station because of the thrusters, the thrusters would have exerted ____________the thrusters in other missions.
a force weaker than
a force greater than
an equal force to
Speeding Up is Accelerating
True
False
Slowing Down is Accelerating
True
False
Changining Direction is Accelerating
True
False
An object at rest stays at rest until an ______
an unbalanced force acts on it
a balanced force acts on it
The force that always acts to oppose motion is
friction
gravity
contact force
In order to produce a change in motion, a force must be a(n)