Pushes & Pulls
You push a basketball and a medicine ball using the same strength. Which will likely travel farther?
Basketball
A lamp sits still on a desk. The forces are:
Balanced or Unbalanced
Balanced
Same force applied to two objects. Which accelerates more?
A. Smaller mass
B. Larger mass
C. Both same
D. Depends on color
Smaller Mass
Which surface has the MOST friction?
A. Ice
B. Carpet
C. Glass
D. Tile
Carpet
Which force pulls objects toward Earth?
Gravity
Two students pull a sled in the same direction. What happens to the sled?
Moves faster
If forces on an object are unbalanced, the object will:
Stay still or Change motion?
Change motion
A 3 kg scooter and a 9 kg wagon are pushed with equal force. Which moves faster?
Scooter
A toy car rolls down a ramp. How can students make it go faster?
A. Make ramp steeper
B. Make ramp flatter
C. Add sand to ramp
D. Use rough wheels
Make ramp steeper
Two magnets snap together. What caused this?
Magnetic Force from attraction
One student pushes a cart forward with 3 N while another pulls it backward with 3 N. What happens?
Cart does not move
A tug-of-war team pulls with 50 N left while another team pulls with 30 N right. Which way will the rope move?
Left
Which object needs MORE force to move?
A. Light backpack
B. Heavy suitcase
C. Empty box
D. Paper
Heavy Suitcase
Friction mainly:
A. Speeds objects up
B. Slows objects down
C. Makes objects float
D. Changes mass
Slows objects down
Magnets facing same poles will:
Repel
A friend pushes your backpack while you push it from the other side in the same direction. How does the speed change?
The backpack doesn't move
A stack of books is slightly tilted on a very high shelf. Which force is causing it to eventually fall?
Unbalanced forces (gravity)
A 2 kg ball and 6 kg ball are pushed with the same force. Acceleration of 2 kg ball is more or less?
3× greater than 6 kg ball
A sled sliding on ice vs grass. Which has less friction?
Ice
A weight hanging from a spring stretches. What forces are acting?
Gravity downward, pulling from weight.
You pull a wagon uphill alone. How could adding a second person affect the motion?
Makes it easier to move and increases speed
If a toy car is moving at constant speed, what can you say about the forces? Are they balanced or unbalanced?
Forces are balanced
Explain why mass affects acceleration.
More mass resists motion; less mass accelerates faster with same force
You push a box across a rough floor. How does friction affect the box?
Friction slows it down.
Explain why astronauts appear weightless in space.
There is no gravity and objects float.